Case Law Index Climate Change
January 1, 2002 – December 1, 2025
This index provides a comprehensive though not necessarily exhaustive compilation of reported and unreported federal and state court decisions involving Climate Change that were decided between the dates listed above. The cases are listed in reverse chronological order. The “Text” link goes to the freely available Google Scholar text of the opinion. These listings are for educational purposes only and are not a substitute for legal counsel.
SUPREME COURT
Diamond Alternative Energy, LLC v. Env’t Prot. Agency, 606 U.S. 100, 145 S. Ct. 2121, 222 L. Ed. 2d 370 (2025) (fuel producers had standing to challenge California regulations limiting automakers’ greenhouse gas emissions) Text
W. Virginia v. Env’t Prot. Agency, 597 U.S. 697, 142 S. Ct. 2587, 213 L. Ed. 2d 896 (2022) (CAA did not authorize “generation shifting” approach to regulating carbon dioxide emissions) Text
Cty. of Maui, Hawaii v. Hawaii Wildlife Fund, 140 S. Ct. 1462 (2020) (alleging that county violated the Clean Water Act (CWA) by discharging effluent, without a National Pollutant Discharge Elimination System (NPDES) permit) Text
Util. Air Regulatory Grp. v. E.P.A., 573 U.S. 302 (2014) (challenging EPA’s determination that its motor-vehicle greenhouse-gas regulations automatically triggered permitting requirements under Clean Air Act) Text
Am. Elec. Power Co. v. Connecticut, 564 U.S. 410 (2011) (seeking abatement of defendants’ ongoing contributions to public nuisance of global warming) Text
Summers v. Earth Island Inst., 555 U.S. 488 (2009) (Environmental organizations brought action to enjoin United States Forest Service from applying its regulations to exempt salvage sale of timber) Text
Massachusetts v. EPA, 549 U.S. 497 (2007) (Clean Air Act authorizes EPA to regulate greenhouse gases) Text
Rapanos v. United States, 547 U.S. 715, 126 S. Ct. 2208 (2006) (Expanding upon what constitutes jurisdictional waters under the Clean Water Act) Text
Whitman v. Am. Trucking Associations, 531 U.S. 457 (2001) (challenging EPA final rule revising national ambient air quality standards) Text
FIRST CIRCUIT
Rhode Island v. Shell Oil Prods. Co., 35 F.4th 44 (1st Cir. 2022) (state’s climate change-related lawsuit was not subject to removal to federal court) Text
Conservation Law Found., Inc. v. Exxon Mobil Corp., 3 F.4th 61 (1st Cir. 2021) (stay of suit against operator of petroleum distribution terminal not appropriate)
Massachusetts v. Exxon Mobil Corp., No. CV 19-12430-WGY, 2020 WL 2769681, at *1 (D. Mass. May 28, 2020) (brought suit to hold a single oil company liable for global climate change) Text
Conservation Law Found., Inc. v. ExxonMobil Corp., No. CV 16-11950-MLW, 2020 WL 1332949 (D. Mass. Mar. 21, 2020) (alleging violations of Environmental Protection Agency permit, the Clean Water Act, and Resource Conservation and Recovery Act) Text
Rhode Island v. Chevron Corp., 393 F. Supp. 3d 142 (D.R.I. 2019) (alleging tort claims, including public nuisance upon non-federal property and natural resources in Rhode Island as a result of climate change) Text
United States v. R.M. Packer Co., Inc., 355 F. Supp. 3d 66 (D. Mass. 2018) (action against marine transportation company under Clean Air Act ) Text
Citizens of the Karst, Inc. v. United States Army Corps of Eng’rs, 160 F. Supp. 3d 451 (D.P.R. 2016) (Clean Water Act notice violation) Text
Conservation Law Found., Inc. v. U.S. E.P.A., 964 F. Supp. 2d 175 (D. Mass. 2013) (challenging the EPA’s project approval under Clean Water Act) Text
Ophir v. City of Boston, 647 F.Supp.2d 86 (D. Mass. 2009) (federal law preempted local ordinance requiring taxis to switch to hybrids) Text
Lincoln-Dodge, Inc. v. Sullivan, 2007 U.S. Dist. LEXIS 94618 (D.R.I. 2008) (Clean Air Act jurisdiction and enforceability) Text
Green Mountain Chrysler Plymouth Dodge Jeep v. Crombie, 508 F. Supp. 2d 295 (D. Vt. 2007) (denying motion to exclude testimony of climate change expert) Text
Reilly v. EPA, 429 F. Supp.2d 335 (D. Mass. 2006) (mercury emissions cap and trade program under the CAA) Text
U.S. Pub. Interest Research Grp. v. Atl. Salmon of Maine, LLC., 215 F. Supp. 2d 239 (D. Me. 2002) (Clean Water Act citizen suit) Text
U.S. Pub. Interest Research Grp. c. Stolt Sea Farm, Inc., No. CIV.00-149-B-C, 2002 WL 240386, at *1 (D. Me. Feb. 19, 2002) (alleging discharges of pollutants in violation of the Act) Text
SECOND CIRCUIT
W. Virginia v. James, No. 1:25-CV-00168 (BKS/DJS), 2025 WL 3101286 (N.D.N.Y. Nov. 6, 2025) (challenge to New York state’s Climate Change Superfund Act) Text
City of New York v. Exxon Mobil Corp., 733 F. Supp. 3d 296 (S.D.N.Y. 2024), aff’d, 154 F.4th 36 (2d Cir. 2025) (fossil fuel companies could not remove climate change-related action to federal court) Text
Zero Carbon Holdings, LLC v. Aspiration Partners, Inc., 732 F. Supp. 3d 326 (S.D.N.Y. 2024), appeal withdrawn, No. 24-1351, 2024 WL 3868691 (2d Cir. July 18, 2024) (contract required project developer to deliver voluntary carbon credits to buyer) Text
Vermont v. Exxon Mobil Corp., No. 2:21-CV-260, 2024 WL 446086 (D. Vt. Feb. 6, 2024) (climate change-related lawsuit remanded to state court) Text
Zero Carbon Holdings, LLC v. Aspiration Partners, Inc., No. 23-CV-05262 (LJL), 2023 WL 8936386 (S.D.N.Y. Dec. 27, 2023) (denial of motion to dismiss carbon credits lawsuit) Text
State by Tong v. Exxon Mobil Corp., 83 F.4th 122 (2d Cir. 2023) (state law challenge to fossil fuel companies for climate change-related injuries wrongly removed to federal court) Text
Nat. Res. Def. Council v. United States Envtl. Prot. Agency, 954 F.3d 150 (2d Cir. 2020) (challenging EPA’s denial of request for model of current version of computer program to forecast automakers’ likely responses to proposed greenhouse gas emissions standards) Text
Riverkeeper, Inc. v. Wheeler, 373 F. Supp. 3d 443 (S.D.N.Y. 2019) (seeking injunction to compel EPA to prepare and publish proposed regulations) Text
Exxon Mobil Corp. v. Schneiderman, 316 F. Supp. 3d 679 (S.D.N.Y. 2018) (alleging that investigations were in retaliation for its views on climate change) Text
City of New York v. BP P.L.C., 325 F. Supp. 3d 466 (S.D.N.Y. 2018) (action due to rising sea levels allegedly caused by emission of greenhouses gases) Text
Coal. for Competitive Elec., Dynegy Inc. v. Zibelman, 272 F. Supp. 3d 554 (S.D.N.Y. 2017) (challenging New York’s regulatory program, the Clean Energy Standard order, that awarded credits to certain nuclear generators for their zero-emissions electricity production) Text
Vermonters for a Clean Env’t, Inc. v. Madrid, 73 F. Supp. 3d 417 (D. Vt. 2014) (challenging a record of decision to install a wind farm in a national park) Text
Connecticut v. Am. Elec. Power Co., 582 F.3d 309 (2d Cir. 2009) (common law public nuisance claim for global warming) Text
Green Mountain Chrysler Plymouth Dodge Jeep v. Crombie, 508 F. Supp. 2d 295 (D. Vt. 2007) (action seeking declaratory and injunctive relief from Vermont regulations adopting California’s greenhouse gas (GHG) emissions standards for new automobiles) Text
Korsinsky v. EPA, 192 F. App’x 71 (2d Cir. 2006) (claims of injury from global warming too speculative)
In re Methyl Tertiary Butyl Ether (MTBE) Prod. Liab. Litig., 438 F. Supp. 2d 291 (S.D.N.Y. 2006) (claim arising out of alleged contamination or threatened contamination of groundwater)
Natural Res. Def. Council v. Mineta, No. 04 Civ.5380(VM)(RLE), 2005 WL 1075355 (S.D.N.Y. May 3, 2005) (standing to challenge compliance with CAFE standards)
Korsinsky v. EPA, No. 05 Civ. 859(NRB), 2005 WL 2414744 (S.D.N.Y. Sept. 29, 2005) (claim of global warming as a public nuisance; federal and state agencies contributed to global warming)
Connecticut v. Am. Elec. Power Co., 406 F. Supp. 2d 265 (S.D.N.Y. 2005) (dismissing suit for the abatement of public nuisance of global warming) Text
Friends of the Earth v. U.S. Forest Serv., 114 F. Supp. 2d 288 (D. Vt. 2000) (challenging timber sales on national forest land) Text
THIRD CIRCUIT
City of Hoboken v. Chevron Corp., 45 F.4th 699 (3d Cir. 2022) (climate change-related lawsuit was wrongly removed to federal court) Text
Delaware v. BP America Inc., No. 20-1429-LPS, 2022 WL 58484 (D. Del. Jan. 5, 2022) (state law climate change tort claims not entirely preempted by federal law) Text
City of Hoboken v. Exxon Mobil Corp., No. 20-cv-14243, 2021 WL 4077541 (D. N.J. Sept. 8, 2021) (federal law did not completely preempt state law climate change claims) Text
Clean Air Council v. United States Steel Corp., No. 2:19-CV-1072, 2020 WL 2490023, at *1 (W.D. Pa. May 14, 2020) (alleging violations of the Comprehensive Environmental Response, Compensation, and Liability Act) Text
Clean Air Council v. United States, 362 F. Supp. 3d 237 (E.D. Pa. 2019) (whether executive branch can be held liable for rollback of environmental law) Text
In re La Paloma Generating, Co., No. 16-12700 (CSS), 2017 WL 5197116, at *1 (Bankr. D. Del. Nov. 9, 2017) (interpretation of regulations promulgated by the California Air Resources Board implementing a “cap and trade” program for carbon emissions) Text
Arkema Inc. v. Honeywell Int’l, Inc., No. 10-CV-2886, 2013 WL 5356844, at *1 (E.D. Pa. Sept. 25, 2013) (seeking a declaration from the court that would invalidate four patents relating to a refrigerant with low global-warming potential) Text
United States v. EME Homer City Generation, L.P., 727 F.3d 274 (3d Cir. 2013) (alleging violations of the federal Clean Air Act) Text
GenOn REMA, LLC v. U.S. E.P.A., 722 F.3d 513 (3d Cir. 2013) (petitioned for review of EPA rule issued in response to downwind state’s petition for an order restricting sulfur dioxide emissions) Text
United States v. EME Homer City Generation L.P., 823 F. Supp. 2d 274 (W.D. Pa. 2011) (alleging violations of the federal Clean Air Act) Text
Clean Air Council v. Mallory, 226 F. Supp. 2d 705 (E.D. Pa. 2002) (Eleventh Amendment did not bar citizen suit under Clean Air Act) Text
FOURTH CIRCUIT
Anne Arundel Cnty., Maryland v. BP P.L.C., 94 F.4th 343 (4th Cir. 2024) (climate change-related lawsuit wrongly removed to federal court) Text
City of Annapolis, Maryland v. BP P.L.C., No. CV SAG-21-00772, 2022 WL 4548226 (D. Md. Sept. 29, 2022) (climate change-related lawsuit wrongly removed to federal court) Text
Mayor & City Council of Baltimore v. BP P.L.C., 31 F.4th 178 (4th Cir. 2022) (climate change-related lawsuit was wrongly removed to federal court) Text
Appalachian Voices v. U.S. Dep’t of Interior, No. 20-2159, 2022 WL 320320 (4th Cir. 2022) (FWS biological opinion failed to appropriately consider impacts of climate change) Text
Mayor & City Council of Baltimore v. BP P.L.C., 952 F.3d 452 (4th Cir. 2020) (alleging contribution to climate change by producing and selling fossil fuel products while deceiving public about products’ dangers) Text
Friends of Buckingham v. State Air Pollution Control Bd., 947 F.3d 68 (4th Cir. 2020) (challenging Board’s decision to award natural gas pipeline company permit for construction) Text
Blue Water Balt., Inc. v. Wheeler, 2019 U.S. Dist. LEXIS 47689 (D. Md. 2019) (EPA denial of stormwater discharge contribution) Text
Mayor & City Council of Baltimore v. BP P.L.C., 388 F. Supp. 3d 538 (D. Md. 2019) (alleging contributing to climate change by producing and selling fossil fuel products while deceiving public about products’ dangers) Text
Sierra Club v. Virginia Elec. & Power Co., 903 F.3d 403 (4th Cir. 2018) (alleging violations of Clean Water Act on discharge of arsenic from coal ash piles into surrounding surface waters) Text
South Carolina v. United States, 221 F. Supp. 3d 684 (D.S.C. 2016) (Violation of nuclear storage requirements) Text
Yadkin Riverkeeper, Inc. v. Duke Energy Carolinas, LLC, 141 F. Supp. 3d 428 (M.D.N.C. 2015) (citizen enforcement action against energy company alleging violations of the Clean Water Act) Text
Carolina All. for Transp. Reform, Inc. v. U.S. Dep’t of Transp., 713 F. Supp. 2d 491 (M.D.N.C. 2010) (alleging that construction of portion of beltway violated National Environmental Policy Act) Text
Mirant Potomac River, LLC v. EPA, 577 F.3d 223 (4th Cir. 2009) (cap and trade program; challenging Virginia’s SIP for nonattainment area) Text
Audubon Naturalist Soc’y of the Cent. Atl. States, Inc. v. U.S. Dep’t of Transp., 524 F. Supp. 2d 642 (D. Md. 2007) (not arbitrary and capricious to conclude that mitigation for climate change not needed for single stretch of highway) Text
United States v. Deaton, 209 F.3d 331 (4th Cir. 2000) (alleging that owners violated Clean Water Act by discharging fill material from digging of drainage ditch into a regulated wetland) Text
FIFTH CIRCUIT
Gas Transmission Nw., L.L.C. v. FERC, 157 F.4th 674 (5th Cir. 2025) (evidence supported FERC’s finding of public convenience and necessity to certify expansion of natural gas pipeline) Text
Indigenous Peoples of Coastal Bend v. United States Army Corps of Eng’rs, 132 F.4th 872 (5th Cir. 2025) (climate change analysis satisfied federal law) Text
Citizens for Clean Air & Clean Water in Brazoria Cnty. v. United States Dep’t of Transportation, 98 F.4th 178 (5th Cir. 2024) (environmental organizations had standing to challenge approval of deepwater oil facility) Text
Texas v. United States Dep’t of Transportation, 726 F. Supp. 3d 695 (N.D. Tex. 2024) (DOT could not require states to measure greenhouse gases) Text
Gulf Restoration Network v. Jackson, 224 F. Supp. 3d 470 (E.D. La. 2016) (Attempt to require the EPA to enforce the Clean Water Act) Text
Exxon Mobil Corp. v. Healey, 215 F. Supp. 3d 520 (N.D. Tex. 2016) (alleging that Massachusetts attorney general misused her law enforcement authority to suppress its opposition to climate change legislation) Text
Gulf Restoration Network v. McCarthy, 783 F.3d 227 (5th Cir. 2015) (Attempt to require the EPA to enforce the Clean Water Act) Text
Ctr. for Biological Diversity, Inc. v. BP Am. Prod. Co., 704 F.3d 413 (5th Cir. 2013) (action under the citizen-suit provisions of the CWA, the CERCLA, and the EPCRA) Text
Comer v. Murphy Oil USA, Inc., 839 F. Supp. 2d 849 (S.D. Miss. 2012) (standing to bring common law nuisance claim for cause of global warming) Text
BCCA Appeal Grp. v. U.S. E.P.A., 476 F. App’x 579 (5th Cir. 2012) (seeking review of EPA’s disapproval of the state implementation plan of the CAA)
Luminant Generation Co. v. U.S. E.P.A., 675 F.3d 917 (5th Cir. 2012) (seeking review of EPA’s disapproval of permit under the CAA) Text
Texas v. U.S. E.P.A., 690 F.3d 670 (5th Cir. 2012) (seeking review of EPA’s disapproval of the state National Ambient Air Quality Standards plan under the Clean Air Act ) Text
Texas v. U.S. E.P.A., No. 10-60961, 2011 WL 710598, at *1 (5th Cir. Feb. 24, 2011) (petition for review of EPA plan under the CAA)
Comer v. Nationwide Mut. Ins., No. 1:05 CV 436 LTD RHW, 2006 WL 1066645 (S.D. Miss Feb. 23, 2006) (claims of property damage as a result of global warming)
SIXTH CIRCUIT
Kentucky v. Fed. Highway Admin., 728 F. Supp. 3d 501 (W.D. Ky. 2024) (agency lacked authority to issue rule requiring states to set declining targets for tailpipe emissions) Text
Kentucky Coal Ass’n, Inc. v. Tennessee Valley Auth., 68 F. Supp. 3d 703 (W.D. Ky.), aff’d, 804 F.3d 799 (6th Cir. 2015) (seeking declaratory judgment that Tennessee Valley Authority violated National Environmental Policy Act) Text
Coal. for Advancement of Reg’l Transp. v. Fed. Highway Admin., 576 F. App’x 477 (6th Cir. 2014) (challenging a proposed construction and transportation management program)
Klein v. U.S. Dep’t of Energy, 753 F.3d 576 (6th Cir. 2014) (alleging DOE failed to comply with NEPA) Text
Kentuckians for Commonwealth v. U.S. Army Corps of Engineers, 963 F. Supp. 2d 670 (W.D. Ky. 2013), aff’d sub nom. Kentuckians for the Commonwealth v. U.S. Army Corps of Engineers, 746 F.3d 698 (6th Cir. 2014) (seeking a declaration that the U.S. Army Corps of Engineers violated the CWA and NEPA) Text
Coal. for Advancement of Reg’l Transp. v. Fed. Highway Admin., 959 F. Supp. 2d 982 (W.D. Ky. 2013), aff’d, 576 F. App’x 477 (6th Cir. 2014) (challenging a proposed construction and transportation management program) Text
Stephens v. Koch Foods, LLC, 667 F. Supp. 2d 768 (E.D. Tenn. 2009) (Whether civilian-led enforcement of the Clean Water Act has standing) Text
Nat’l Parks Conservation Ass’n, Inc. v. Tennessee Valley Auth., 618 F. Supp. 2d 815 (E.D. Tenn. 2009) (alleging that TVA failed to obtain appropriate pollution limitations) Text
LeBlanc v. EPA, No. 08-3049, 310 F. App’x 770 (6th Cir. 2009) (denying petition to review EPA permit for injection well for limited test of CO2 sequestration)
United States v. Cundiff, 555 F.3d 200 (6th Cir. 2009) (alleging violation of the CWA by engaging in unauthorized dredging and filling of wetlands) Text
Kentucky Res. Council, Inc. v. U.S.E.P.A., 304 F. Supp. 2d 920 (W.D. Ky. 2004) (action under CAA against EPA over vehicle emissions testing (VET) program) Text
SEVENTH CIRCUIT
City of Chicago v. BP P.L.C., No. 24-CV-02496, 2025 WL 1426163 (N.D. Ill. May 16, 2025) (climate change related lawsuit remanded to state law) Text
DJL Farm LLC v. U.S. E.P.A., 813 F.3d 1048 (7th Cir. 2016) (petitions for review of EPA order issuing permits authorizing power plant operator to construct and operate wells to store carbon dioxide) Text
Hamrick v. Gen. Servs. Admin., 107 F. Supp. 3d 910 (C.D. Ill. 2015) (alleging GSA violated National Environmental Policy Act) Text
United States v. Cinergy Corp., 458 F.3d 705 (7th Cir. 2006) (alleging that the company violated the Clean Air Act’s new source review permit provisions) Text
United States v. Murphy Oil USA, Inc., 143 F. Supp. 2d 1054 (W.D. Wis. 2001) (action against petroleum refinery to obtain injunctive relief and civil penalties for refinery’s alleged past and present violations of environmental laws) Text
EIGHTH CIRCUIT
Minnesota by Ellison v. Am. Petroleum Inst., 63 F.4th 703 (8th Cir. 2023) (removal of climate change-related lawsuit to federal court was not warranted) Text
State v. Biden, 52 F.4th 362 (8th Cir. 2022) (states lacked standing to challenge president’s executive order establishing interagency working group on greenhouse gases) Text
Missouri v. Biden, No. 4:21-cv-00287, 2021 WL 3885590 (E.D. Mo. Aug. 31, 2021) (challenge to presidential executive order on GHGs not ripe for review) Text
Minnesota v. Am. Petroleum Inst., No. 20-1636, 2021 WL 1215656 (D. Minn. March 31, 2021) (claims that defendant lied to public about climate change belonged in state court) Text
Nucor Steel-Arkansas v. Big River Steel, LLC, 93 F. Supp. 3d 983 (E.D. Ark. 2015) (citizen suit under the Clean Air Act, alleging violations of emissions standards) Text
North Dakota v. U.S. E.P.A., 127 F. Supp. 3d 1047 (D.N.D. 2015)( challenging promulgation of rule changing the definition of “waters of the United States” under the Clean Water Act) Text
Iowa League of Cities v. E.P.A., 711 F.3d 844 (8th Cir. 2013) (review under Clean Water Act of two letters sent by EPA to a United States Senator) Text
North Dakota v. Heydinger, 288 F.R.D. 423 (D. Minn. 2012) (alleging that Next Generation Energy Act (NGEA), which establishing energy and environmental standards related to carbon dioxide emissions, violated the United States Constitution)
Sierra Club v. Clinton, 689 F. Supp. 2d 1123 (D. Minn. 2010) (seeking a preliminary injunction prohibiting defendants from permitting the construction and operation of international oil pipeline) Text
Sierra Club v. Clinton, 689 F. Supp. 2d 1147 (D. Minn. 2010) (alleging that State Department’s issuance of permits to construct and operate international oil pipeline violated National Environmental Policy Act) Text
Sierra Club v. Clinton, 746 F. Supp. 2d 1025 (D. Minn. 2010) (alleging that federal agencies violated National Environmental Policy Act) Text
Serv. Oil, Inc. v. U.S. E.P.A., 590 F.3d 545 (8th Cir. 2009) (review of owner’s failure to apply for a storm water discharge permit) Text
NINTH CIRCUIT
Daimler Truck N. Am. LLC v. California Air Res. Bd., No. 2:25-CV-02255-DC-AC, 2025 WL 3049944 (E.D. Cal. Oct. 31, 2025) (preliminary injunction granted for California state emissions standards regulatory programs for heavy-duty vehicles) Text
Washington v. U.S. Dep’t of Com., No. C25-1507 MJP, 2025 WL 2978822 (W.D. Wash. Oct. 22, 2025) (plaintiff likely to succeed on claim that defendant unlawfully terminating cooperative agreements to help Washington communities become resilient to climate change) Text
Chamber of Com. of United States v. California Air Res. Bd., No. 2:24-CV-00801-ODW (PVCX), 2025 WL 2337209 (C.D. Cal. Aug. 13, 2025) (denial of request for preliminary injunction of California corporate climate disclosure laws) Text
Ctr. for Biological Diversity v. United States Fish & Wildlife Serv., No. 2:21-CV-01527-DJC-DMC, 2025 WL 1993612 (E.D. Cal. July 17, 2025) (FWS did not appropriately consider impacts of climate change to listed species) Text
Ctr. for Biological Diversity v. United States Bureau of Land Mgmt., 141 F.4th 976 (9th Cir. 2025) (climate-change related injury not necessary to have standing to challenge agency analysis of climate change impacts) Text
Makah Indian Tribe v. Exxon Mobil Corp., No. 2:24-CV-157, 2025 WL 913767 (W.D. Wash. Mar. 26, 2025) (court did not have federal question jurisdiction over state law tort claims filed against fossil fuel companies for climate change-related harms) Text
Chamber of Com. of United States v. California Air Res. Bd., 763 F. Supp. 3d 1005 (C.D. Cal. 2025) (state climate disclosure laws were not preempted by CAA) Text
Save the Colorado v. Semonite, No. 18-CV-03258-CMA, 2024 WL 4519201 (D. Colo. Oct. 16, 2024) (climate change impacts required “hard look” during NEPA analysis) Text
G. B. v. United States Env’t Prot. Agency, No. CV 23-10345-MWF (AGRX), 2024 WL 3009302 (C.D. Cal. May 8, 2024) (youth-led climate action dismissed with leave to amend for lack of redressability)
Cnty. of Multnomah v. Exxon Mobil Corp., No. 3:23-CV-01213-YY, 2024 WL 1991554 (D. Or. Apr. 10, 2024), report and recommendation adopted, No. 3:23-CV-01213-YY, 2024 WL 2938473 (D. Or. June 10, 2024) (climate change-related case remanded to state court) Text
Metro v. Exxon Mobil Corp., No. 3:24-CV-00019-YY, 2024 WL 1991578 (D. Or. Apr. 10, 2024), report and recommendation adopted, No. 3:24-CV-00019-YY, 2024 WL 3160475 (D. Or. June 25, 2024) (climate change-related case remanded to state court) Text
Juliana v. United States, No. 6:15-CV-01517-AA, 2023 WL 9023339 (D. Or. Dec. 29, 2023) (denial of motion to dismiss climate change-related civil rights lawsuit) Text
City of Oakland v. BP PLC, No. 22-16810, 2023 WL 8179286 (9th Cir. Nov. 27, 2023) (climate change-related case wrongly removed to federal court) Text
Sovereign Inupiat for a Living Arctic v. Bureau of Land Mgmt., 701 F. Supp. 3d 862 (D. Alaska 2023) (BLM satisfied NEPA by adequately analyzing global greenhouse gas emissions) Text
Invenergy Thermal LLC v. Watson, 701 F. Supp. 3d 1080 (W.D. Wash. 2023) (state’s Climate Commitment Act did not violate dormant commerce clause) Text
City of Oakland v. BP P.L.C., No. C 17-06011 WHA, 2022 WL 14151421 (N.D. Cal. Oct. 24, 2022) (climate change-related lawsuit wrongly removed to federal court) Text
City & Cnty. of Honolulu v. Sunoco LP, 39 F.4th 1101 (9th Cir. 2022) (climate change-related lawsuit wrongly removed to federal court) Text
Concerned Friends of the Winema v. McKay, 614 F. Supp. 3d 756 (D. Or. 2022) (agency took requisite “hard look” at climate change impacts of livestock grazing) Text
Cnty. of San Mateo v. Chevron Corp., 32 F.4th 733 (9th Cir. 2022) (climate change-related action wrongly removed to federal court) Text
WildEarth Guardians v. Haaland, No. 2:19-cv-09473, 2021 WL 4263831 (C.D. Cal. Sept. 20, 2021) (FWS’ conclusion on Joshua trees was not supported by climate change data) Text
Sovereign Iñupiat for a Living Arctic v. Bureau of Land Mgmt., No. 3:20-cv-00290, 2021 WL 3667986 (D. Alaska. Aug. 18, 2021) (GHG emissions analysis violated NEPA) Text
City and County of Honolulu v. Sunoco, LP, No. 20-cv-00163-DKW-RT, 2020 WL 531237 (D. Haw. Feb. 12, 2021) (requesting climate change action be transferred to state court for proper jurisdiction) Text
Columbia Riverkeeper v. U.S. Army Corps of Engineers, No. 19-6071 RJB, 2020 WL 6874871 (W.D. Wash. Nov. 23, 2020) (Corps failed to consider cumulative impacts of greenhouse gas emissions) Text
Juliana v. United States, 947 F.3d 1159 (9th Cir. 2020) (requesting review of climate change action) Text
California v. Bernhardt, No. 4:18-CV-05712-YGR, 2020 WL 4001480 (N.D. Cal. July 15, 2020) (action challenging Bureau of Land Management’s rulemaking process that led to partial rescission of rule governing prevention of waste of oil) Text
Animal Legal Def. Fund v. United States, 404 F. Supp. 3d 1294 (D. Or. 2019) (claiming that climate change and government’s failure to protect them from effects of climate change on federally owned and managed public lands) Text
California v. United States EPA, 385 F. Supp. 3d 903 (N.D. Cal. 2019) (whether States have standing when the EPA fails to meet its enforcing duties and how long does the EPA have to complete its nondiscretionary duties) Text
Juliana v. United States, 339 F. Supp. 3d 1062 (D. Or.), leave to appeal granted, 949 F.3d 1125 (9th Cir. 2018), and mandamus dismissed sub nom. In re U.S., 140 S. Ct. 16, 204 L. Ed. 2d 1171 (2019), and rev’d and remanded, 947 F.3d 1159 (9th Cir. 2020) (alleging that the defendants continued to permit, authorize, and subsidize fossil fuel extraction that allowed carbon dioxide emissions to escalate and allegedly lead to harmful climate change) Text
L.A. Waterkeeper v. Pruitt, 320 F. Supp. 3d 1115 (C.D. Cal. 2018) (forcing EPA to complete its enforcement duties listed under the Clean Water Act) Text
AquAlliance v. U.S. Bureau of Reclamation, 287 F. Supp. 3d 969 (E.D. Cal. 2018), appeal dismissed sub nom. AquAlliance v. United States Bureau of Reclamation, No. 18-16666, 2019 WL 4199912 (9th Cir. June 25, 2019) (alleging violation of the National Environmental Policy Act) Text
Montana Envtl. Info. Ctr. v. U.S. Office of Surface Mining, 274 F. Supp. 3d 1074 (D. Mont. 2017) (claiming violation of National Environmental Policy Act) Text
Aqualliance v. U.S. Bureau of Reclamation, No. 1:15-CV-754-LJO-BAM, 2017 WL 3009196, at *1 (E.D. Cal. July 14, 2017) (challenges water transfer program) Text
Oregon Wild, v. Constance Cummins, 239 F. Supp. 3d 1247 (D. Or. 2017) (challenging Forest Service’s decision to continue to approve livestock grazing in national forest) Text
Kunaknana v. U.S. Army Corps of Engineers, 23 F. Supp. 3d 1063 (D. Alaska 2014) (challenging its decision to issue a permit to oil production company) Text
Washington Envtl. Council v. Bellon, 732 F.3d 1131 (9th Cir. 2013) (alleging agencies failed to enforce state implementation plan) Text
Rocky Mt. Farmers Union v. Corey, 730 F.3d 1070 (9th Cir. 2013) (holding that greenhouse gas limitations on fuel is not facially discriminatory nor in violation of the commerce clause) Text
Alliance for Wild Rockies v. Lyder, No. CV 09-73-M-DWM, 2010 WL 3023652 (D. Mont. July 28, 2010) (identifying critical habitats for Canada lynx) Text
Rocky Mountain Farmers Union v. Goldstene, — F.Supp.2d —-, 2010 WL 2490999 (E.D. Cal. 2010) (challenge to Global Warming Solutions Act) Text
Western Watersheds Project v. U.S. Forest Service, No. 09-0629-E-BLW, 2010 WL 1816254 (D. Idaho May 04, 2010) (failure to follow NEPA for noxious weeds and global warming) Text
Ctr. for Biological Diversity v. Kempthorne, 588 F.3d 701 (9th Cir. 2009) (standing to challenge the taking of polar bears) Text
Native Vill. of Kivalina v. ExxonMobil Corp., 663 F.Supp.2d 863 (N.D. Cal. 2009) (political question; standing; common law nuisance claim caused global warming) Text
Ctr. for Biological Diversity v. Office of Mgmt. & Budget, 625 F. Supp. 2d 885 (N.D. Cal. 2009) (FOIA request on light truck CAFE standards) Text
W. Watersheds Project v. Salazar, No. 08-0516-E-BLW, 2009 WL 1299626 (D. Idaho May 7, 2009) (EIS for resource management plan did not take into account cumulative effects on climate change) Text
Ctr. for Biological Diversity v. Office of Mgmt. & Budget, No. C 07-4997 MHP, 2008 WL 5129417 (N.D. Cal. Dec. 4, 2008) (FOIA request for documents on CAFE standards) Text
Ctr. for Biological Diversity v. Kempthorne, No. C 08-1339 CW, 2008 WL 4951027 (N.D. Cal. Nov. 18, 2008) (challenging rule under ESA that allows greenhouse gas emissions; reclassification of polar bear as “threatened species”)
Ctr. for Biological Diversity v. Nat’l Highway Traffic Safety Admin., 538 F.3d 1172 (9th Cir. 2008) (challenging CAFE standards for light trucks) Text
Sierra Club v. City & Cnty. of Honolulu, 2008 U.S. Dist. LEXIS 64262 (D. Haw. Aug. 18, 2008) (Violation of Clean Water Act by discharging pollutants into waterways) Text
Cent. Valley Chrysler-Jeep, Inc. v. Goldstene, 563 F. Supp. 2d 1158 (E.D. Cal. 2008) (would not expand scope of injunction once federal waiver received) Text
Pac. Coast Fed’n of Fishermen’s Ass’ns v. Gutierrez, 606 F. Supp. 2d 1122 (E.D. Cal. 2008) (NMFS failed to address climate change in biological opinion on endangered salmonid species) Text
San Francisco Chapter of A. Philip Randolph Inst. v. EPA, No. C. 07-04936 CRB, 2008 WL 859985 (N.D. Cal. Mar. 28, 2008) (dismissal of suit seeking an order to compel EPA to regulate carbon dioxide under CAA)
Ctr. for Biological Diversity v. Office of Mgmt. & Budget, 546 F. Supp. 2d 722 (N.D. Cal. 2008) (FOIA request to determine weight climate science given in OMB analysis) Text
N. Slope Borough v. Minerals Mgmt. Serv., No. 3:07-cv-0045-RRB, 2008 WL 110889 (D. Alaska Jan. 8, 2008) (rejecting claim that EIS needed to take into account cumulative impact of climate change on sale of oil and gas leases) Text
Cent. Valley Chrysler-Jeep, Inc. v. Goldstene, 529 F. Supp. 2d 1151 (E.D. Cal. 2007) (state’s carbon dioxide regulations not preempted by CAA if waiver granted) Text
California v. General Motors Corp., No. C06-05755 MJJ, 2007 WL 2726871 (N.D. Cal. Sept. 17, 2007) (global warming nuisance claim non-justiciable)
Ctr. for Biological Diversity v. Brennan, 571 F. Supp. 2d 1105 (N.D. Cal. 2007) (federal agencies in violation of the Global Change Research Act) Text
Natural Res. Def. Council v. Kempthorne, 506 F. Supp. 2d 322 (E.D. Cal 2007) (biological opinion by FWS did not take into account data on climate change; violated duty under ESA) Text
N. Slope Borough v. Minerals Mgmt. Serv., No. 3:07-cv-0045-RRB, 2007 WL 1106110 (D. Alaska Apr. 12, 2007) (not required to account for climate change in EIS) Text
Friends of Earth, Inc. v. Mosbacher, 488 F. Supp. 2d 889 (N.D. Cal. 2007) (use of climate change reports prepared by federal agency) Text
Cent. Valley Chrysler-Jeep, Inc. v. Witherspoon, 456 F. Supp. 2d 1160 (E.D. Cal. 2006) (state’s carbon dioxide regulations preempted by federal law, unless waiver is granted) Text
Cent. Valley Chrysler-Jeep, Inc. v. Witherspoon, No. CV-F-04-6663 REC LJO, 2006 WL 1883363 (E.D. Cal. July 7, 2006) (discovery of documents relating to global warming) Text
Nw. Envtl. Def. Ctr. v. Owens Corning Corp., 434 F. Supp. 2d 957 (D. Or. 2006) (group had standing to challenge that facility would contribute to global warming under CAA) Text
Cent. Valley Chrysler-Jeep, Inc. v. Witherspoon, No. CV-F-04-6663 REC LJO, 2005 WL 2709508 (E.D. Cal. Oct. 5, 2005) (challenging CARB’s ability to regulate carbon dioxide releases from new motor vehicles sold in California)
Friends of Earth, Inc. v. Watson, No. C 02-4106 JSW, 2005 WL 2035596 (N.D. Cal. Aug. 23, 2005) (claims of violations of NEPA by not taking into account climate change) Text
Ctr. for Biological Diversity v. Abraham, 218 F. Supp. 2d 1143 (N.D. Cal. 2002) (claims of injuries from global warming too general for standing) Text
TENTH CIRCUIT
Swomley v. Schroyer, No. 20-1335, 2021 WL 4810161 (10th Cir. 2021) (plaintiffs unable to support NEPA climate change claim) Text
Diné Citizens Against Ruining our Environment v. Bernhardt, No. 1:19-CV-00703, 2021 WL 3370899 (D. N.M. Aug. 3, 2021) (denial of injunction over drilling on BLM land) Text
Utah Physicians for a Healthy Env’t v. U.S. Bureau of Land Mgmt., 528 F.Supp.3d 1222 (D. Utah March 24, 2021) (BLM did not adequately analyze impacts of GHGs)
WildEarth Guardians v. Bernhardt, No. 1:19-CV-00505-RB-SCY, 2020 WL 6799068 (D. N.M. Nov. 19, 2020) (NEPA does not require specific climate change methodologies to assess cumulative impacts) Text
Swomley v. Schroyer, No. 19-CV-01055-TMT, 2020 WL 5250550 (D. Colo. Sept. 3, 2020) (USFS not required to consider greenhouse gas emissions in impacts analysis) Text
Citizens for a Healthy Cmty. v. United States Bureau of Land Mgmt., 377 F. Supp. 3d 1223 (D. Colo. 2019) (seeking review of BLM’s approval of a master development plan) Text
Utah Physicians for a Healthy Env’t v. Diesel Power Gear LLC, 374 F. Supp. 3d 1124 (D. Utah 2019) (citizen enforcement action under the Clean Air Act) Text
San Juan Citizens All. v. United States BLM, 326 F. Supp. 3d 1227 (D.N.M. 2018) (NEPA challenge) Text
Wilderness Workshop v. United States Bureau of Land Mgmt., 342 F. Supp. 3d 1145 (D. Colo. 2018) (alleging that Bureau violated National Environmental Policy Act) Text
San Juan Citizens All. v. United States Bureau of Land Mgmt., 326 F. Supp. 3d 1227 (D.N.M. 2018) (alleging that lease of parcels of federal mineral estate in Santa Fe National Forest violated National Environmental Policy Act) Text
Wild Earth Guardians v. United States Forest Serv., 120 F. Supp. 3d 1237 (D. Wyo. 2015) (challenging agency decisions approving coal leases) Text
High Country Conservation Advocates v. United States Forest Serv., 52 F. Supp. 3d 1174 (D. Colo. 2014) (judicial review of agency decisions that together authorized on-the-ground mining) Text
Amigos Bravos v. U.S. Bureau of Land Mgmt., 816 F. Supp. 2d 1118 (D.N.M. 2011) (challenging the Bureau of Land Management’s decision to approve two quarterly oil and gas lease sales) Text
WildEarth Guardians v. U.S. Forest Serv., 828 F. Supp. 2d 1223 (D. Colo. 2011) (review of Final Environmental Impact Statement (FEIS) issued by United States Forest Service) Text
San Juan Citizens Alliance v. Stiles, No. 08-cv-00144-RPM, 2010 WL 1780816 (D. Colo. May 03, 2010) (NEPA challenge) Text
Miami-Dade Cnty. v. United States EPA, 529 F.3d 1049 (11th Cir. 2008) (challenging EPA rule allowing dumping via Clean Water Act permit) Text
Air Conditioning, Heating, & Refrigeration Inst. v. City of Albuquerque, Civ. No. 08-633 MV/RLP, 2008 WL 5586316 (D.N.M. Oct. 3, 2008) (federal preemption of local city’s energy conservation building code)
ELEVENTH CIRCUIT
Ctr. for Biological Diversity v. U.S. Fish & Wildlife Serv., No. 2:19-CV-14243, 2020 WL 5548362 (S.D. Fla. Sept. 16, 2020) (FWS listing decision did not need to focus on climate change effects) Text
Se. Legal Found., Inc. v. United States Envtl. Prot. Div., 181 F. Supp. 3d 1063 (N.D. Ga. 2016) (judicial review of EPA’s processing of three Freedom of Information Act requests) Text
Conservancy of Sw. Fla. v. U.S. Fish & Wildlife Serv., 677 F.3d 1073 (11th Cir. 2012) (challenging United States Fish and Wildlife Service’s denial of their petitions to designate critical habitat for the Florida panther) Text
D.C. CIRCUIT
Urb. Sustainability Directors Network v. United States Dep’t of Agric., No. CV 25-1775 (BAH), 2025 WL 2374528 (D.D.C. Aug. 14, 2025) (plaintiffs likely to prevail on claims that federal grants for climate change related activities were cancelled unlawfully) Text
Ctr. for Biological Diversity v. Env’t Prot. Agency, 141 F.4th 153 (D.C. Cir. 2025) (EPA’s analysis of set rule’s effects on climate change was arbitrary and capricious) Text
Healthy Gulf v. FERC, 132 F.4th 544 (D.C. Cir. 2025) (decision not to consider project’s effects on greenhouse gas emissions did not violate federal law) Text
New Jersey Conservation Found. v. FERC, 111 F.4th 42 (D.C. Cir. 2024) (agency violated federal law by failing to assess significance regarding greenhouse gas emissions from pipeline project) Text
Healthy Gulf v. FERC, 107 F.4th 1033 (D.C. Cir. 2024) (agency inadequately explained environmental significance of greenhouse gas emissions) Text
Food & Water Watch v. FERC, 104 F.4th 336 (D.C. Cir. 2024) (agency did not violate law by declining to address greenhouse gas emissions in NEPA analysis) Text
Sinclair Wyoming Ref. Co. LLC v. Env’t Prot. Agency, 101 F.4th 871 (D.C. Cir. 2024) (EPA did not violate CAA concluding that climate-change related benefits outweighed effect on fuel prices) Text
Ohio v. Env’t Prot. Agency, 98 F.4th 288 (D.C. Cir.), cert. granted in part sub nom. Diamond Alternative Energy, LLC v. Env’t Prot. Agency, 145 S. Ct. 980, 220 L. Ed. 2d 288 (2024), and cert. denied, 145 S. Ct. 994, 220 L. Ed. 2d 367 (2024), and rev’d and remanded sub nom. Diamond Alternative Energy, LLC v. Env’t Prot. Agency, 606 U.S. 100, 145 S. Ct. 2121, 222 L. Ed. 2d 370 (2025) (EPA’s waiver of CAA provision on stricter state automobile emissions standards for California did not violate equal sovereignty principle) Text
Dakota Res. Council v. U.S. Dep’t of Interior, No. 22-CV-1853 (CRC), 2024 WL 1239698 (D.D.C. Mar. 22, 2024) (BLM reasonably exhausted available tools to analyze oil and gas lease sales) Text
D.C. v. Exxon Mobil Corp., 89 F.4th 144 (D.C. Cir. 2023) (climate change-related lawsuit wrongly removed to federal court) Text
Heating, Air Conditioning & Refrigeration Distributors Int’l v. Env’t Prot. Agency, 71 F.4th 59 (D.C. Cir. 2023) (EPA has authority to regulate hydrofluorocarbons through cap-and-trade program) Text
Ctr. for Biological Diversity v. FERC, 67 F.4th 1176 (D.C. Cir. 2023) (agency did not violate law by refusing to use social cost of carbon metric to estimate effect of greenhouse gas emissions) Text
D.C. v. Exxon Mobil Corp., 640 F. Supp. 3d 95 (D.D.C. 2022) (climate change-related lawsuit wrongly removed to federal court) Text
Delaware Riverkeeper Network v. FERC, 45 F.4th 104 (D.C. Cir. 2022) (agency finding of no significant impact of proposed natural gas pipeline did not violate federal law) Text
Food & Water Watch v. FERC, 28 F.4th 277 (D.C. Cir. 2022) (agency violated federal law by failing to evaluate downstream gas consumption and greenhouse gas emissions) Text
Berka v. U.S. Nuclear Regulatory Comm’n, No. 21-1131, 2022 WL 412470 (D.C. Cir. 2022) (plaintiff’s climate change-based injury could not establish standing) Text
Truck Trailer Mfrs. Ass’n v. Envtl. Protection Agency, 17 F.4th 1198 (D.C. Cir. 2021) (CAA does not authorize EPA to regulate trailers’ effects on GHGs) Text
Vecinos para el Bienestar de la Comunidad Costera v. Fed. Energy Regulatory Comm’n, 6 F.4th 1321 (D.C. Cir. 2021) (analysis of GHG impacts from liquified natural gas pipeline was deficient) Text
Am. Fuel & Petrochemical Mfrs. v. Envtl. Prot. Agency, 3 F.4th 373 (D.C. Cir. 2021) (EPA exceeded CAA authority over fuel volatility waiver) Text
Envtl. Defense Fund v. Fed. Energy Regulatory Comm’n, 2 F.4th 953 (D.C. Cir. 2021) (vacatur of pipeline orders required) Text
Am. Lung Ass’n v. Envtl. Prot. Agency, 985 F.3d 914 (D.C. Cir. 2021) (Affordable Clean Energy rule found invalid) Text
WildEarth Guardians v. Bernhardt, No. CV 16-1724 (RC), 2020 WL 6701317 (D. D.C. Nov. 13, 2020) (BLM failed to take “hard look” at greenhouse gas emissions) Text
Oceana, Inc. v. Ross, No. CV 15-0555 (PLF), 2020 WL 5995125 (D. D.C. Oct. 9, 2020) (agency failed to consider effects of climate change on sea turtles) Text
Nat. Res. Def. Council v. Wheeler, 955 F.3d 68 (D.C. Cir. 2020) (review of Environmental Protection Agency (EPA) rule suspending prior rule’s listing of hydrofluorocarbons) Text
WildEarth Guardians v. Zinke, 368 F. Supp. 3d 41 (D.D.C. 2019) (action against Bureau of Land Management (BLM), claiming it violated the National Environmental Policy Act (NEPA) in authorizing oil and gas leasing on federal land in Wyoming, Utah, and Colorado) Text
Sierra Club v. Fed. Energy Regulatory Comm’n, 867 F.3d 1357 (D.C. Cir. 2017) (review of decision of Federal Energy Regulatory Commission) Text
Envtl. Integrity Project v. McCarthy, 319 F.R.D. 8 (D.D.C. 2016) (Whether plaintiffs have standing to intervene in EPA rule involving oil and gas movement) Text
WildEarth Guardians v. Bureau of Land Mgmt., 8 F. Supp. 3d 17 (D.D.C. 2014) (challenging its decision to lease public land for coal mining operations under National Environmental Policy Act (NEPA) and Federal Land Policy Management Act) Text
Communities for a Better Env’t v. E.P.A., 748 F.3d 333 (D.C. Cir. 2014) (review of EPA decision not to alter primary national ambient air quality standards for carbon monoxide) Text
WildEarth Guardians v. Jewell, 738 F.3d 298 (D.C. Cir. 2013) (challenging BLM decision to authorize lease of public lands for coal mining operations) Text
WildEarth Guardians v. Salazar, 880 F. Supp. 2d 77 (D.D.C. 2012) (challenging government’s decision to authorize lease of public lands for coal mining operations) Text
Coal. for Responsible Regulation, Inc. v. E.P.A., 684 F.3d 102 (D.C. Cir. 2012) (challenging greenhouse gas-related rules related to motor vehicle emissions) Text
Natural Res. Def. Council v. EPA, 571 F.3d 1245 (D.C. Cir. 2009) (EPA violated CAA by allowing participation in regional cap and trade program) Text
Ctr. for Biological Diversity v. U.S. Dep’t of Interior, 563 F.3d 466 (D.C. Cir. 2009) (no standing to challenge leasing program; failure to consider climate change in decision) Text
Appalachian Voices v. Bodman, 587 F. Supp. 2d 79 (D.D.C. 2008) (lack of standing to challenge tax credit program under Energy Policy Act) Text
North Carolina v. EPA, 531 F.3d 896 (D.C. Cir. 2008) (cap and trade program for pollution lacked measures to force upwind states to abate their emissions) Text
ALASKA
Sagoonick v. State, No. S-17297, 2022 WL 262268 (Alaska 2022) (claims for injunctive relief to require State to combat climate change present nonjusticiable question) Text
Kanuk ex rel. Kanuk v. State, Dep’t of Nat. Res., 335 P.3d 1088 (Alaska 2014) (claiming that the State violated its duties under the state constitution and the public trust doctrine by failing to take steps to protect the atmosphere) Text
CALIFORNIA
Ctr. for Biological Diversity v. Cnty. of Los Angeles, 112 Cal. App. 5th 317, 334 Cal. Rptr. 3d 312 (2025) (environmental impact report for development project which stated that greenhouse gas emissions would be offset through cap-and-trade compliance was misleading) Text
California Nat. Gas Vehicle Coal. v. State Air Res. Bd., 105 Cal. App. 5th 304, 326 Cal. Rptr. 3d 1 (2024) (Board complied with CEQA when adopting Advanced Clean Trucks Regulation) Text
Upland Cmty. First v. City of Upland, 105 Cal. App. 5th 1, 325 Cal. Rptr. 3d 582 (2024), as modified (Sept. 13, 2024) (substantial evidence support city’s use of lower greenhouse gas emissions threshold) Text
Tsakopoulos Invs., LLC v. Cnty. of Sacramento, 95 Cal. App. 5th 280, 313 Cal. Rptr. 3d 300 (2023) (statewide emissions reduction targets were appropriate thresholds of significance for project) Text
Cnty. of Butte v. Dep’t of Water Res., 90 Cal. App. 5th 147, 306 Cal. Rptr. 3d 860 (2023) (evidence supported agency conclusion that future project changes which climate change might require were too speculative to study) Text
Sierra Club v, Cty. of San Diego, Nos. D077548, D077972, 2021 WL 6050624 (Cal. Ct. App. Dec. 21, 2021) (review of greenhouse gas mitigation measures for development proposals) Text
Golden Door Properties, LLC v. Cty. of San Diego, 50 Cal. App. 5th 467, 264 Cal. Rptr. 3d 309 (2020) (challenging county’s approval of climate action plan) Text
Golden Door Properties, LLC v. Cty. of San Diego, 27 Cal. App. 5th 892, 238 Cal. Rptr. 3d 559 (2018) (review of greenhouse gas impacts for development proposals in unincorporated areas) Text
Ass’n of Irritated Residents v. Kern Cty. Bd. of Supervisors, 17 Cal. App. 5th 708, 225 Cal. Rptr. 3d 463 (2017) (challenging county’s certification of environmental impact report)
Ctr. for Biological Diversity v. Dep’t of Fish & Wildlife, 62 Cal. 4th 204, 361 P.3d 342 (2015), as modified on denial of reh’g (Feb. 17, 2016) (seeking to challenge certification of the project’s environmental impact report) Text
Cleveland Nat’l Forest Found. v. San Diego Assn. of Governments, 180 Cal. Rptr. 3d 548 (Ct. App. 2014) (challenging certification of environmental impact report (EIR) for regional transportation plan) Text
Ballona Wetlands Land Tr. v. City of Los Angeles, 201 Cal. App. 4th 455, 134 Cal. Rptr. 3d 194 (2011) (challenging certification of EIR and approval of project) Text
Communities for a Better Env’t v. City of Richmond, 184 Cal. App. 4th 70, 108 Cal. Rptr. 3d 478 (2010) (challenging city council’s certification of final environmental impact report) Text
COLORADO
Cnty. Commissioners of Boulder Cnty. v. Suncor Energy USA, Inc., 2025 CO 21 (CAA did not preempt plaintiffs’ state law tort claims against oil and gas producers for their role in exacerbating climate change) Text
Env’t Def. Fund v. Colorado Dep’t of Pub. Health & Env’t, 2022 COA 130, 524 P.3d 334 (agency satisfied duty to propose rules related to state greenhouse gas reduction goals) Text
CONNECTICUT
State v. Exxon Mobil Corp., No. HHDCV206132568S, 2024 WL 3580377 (Conn. Super. Ct. July 23, 2024) (court had jurisdiction over climate change-related lawsuit)
DELAWARE
State ex rel. Jennings v. BP Am. Inc., No. N20C-09-097 MMJ CCLD, 2024 WL 98888 (Del. Super. Ct. Jan. 9, 2024) (motion to dismiss climate change-related lawsuit granted in part and denied in part) Text
HAWAII
City & Cnty. of Honolulu v. Chevron Corp, 157 Haw. 340, 577 P.3d 82 (Ct. App. 2025) (California anti-SLAPP law could not be applied) Text
City & Cnty. of Honolulu v. Sunoco LP, 153 Haw. 326, 537 P.3d 1173 (2023) (CAA did not preempt state-law tort claims against fossil fuel companies for climate change-related harms) Text
GEORGIA
Longleaf Energy Assocs., LLC v. Friends of Chattahoochee, Inc., 681 S.E.2d 203 (Ga. Ct. App. 2009) (carbon dioxide not a regulated new source) Text
IOWA
Iowa Citizens for Cmty. Improvement v. State, 962 N.W.2d 780 (Iowa 2021) (reliance on public trust doctrine to compel environmental legislation is nonjusticiable question) Text
LOUISIANA
Healthy Gulf v. Sec’y, Louisiana Dep’t of Nat. Res., 2024-0286 (La. App. 4 Cir. 12/23/24), 407 So. 3d 705 (state did not violate public trust duty by issuing permit for pipeline) Text
MASSACHUSETTS
Exxon Mobil Corp. v. Attorney Gen., 479 Mass. 312, 94 N.E.3d 786 (2018) (Fossil fuel company moved to set aside Attorney General’s civil investigative demand for documents and information relating to company’s knowledge and activities related to climate change) Text
Kain v. Dep’t of Envtl. Prot., 474 Mass. 278, 49 N.E.3d 1124 (2016) (for declaratory relief or writ of mandamus requiring Department to fulfill mandate to promulgate regulations under the Global Warming Solutions Act) Text
MINNESOTA
Minn. Ctr. for Envtl. Advocacy v. Holsten, A08-2171, 2009 WL 2998037 (Minn. Ct. App. Sept. 22, 2009) (state agency took climate change into account when approving mining project) Text
MONTANA
Held v. State, 2024 MT 312, 419 Mont. 403, 560 P.3d 1235 (state law limitation on considering greenhouse gas emissions violated right to clean and healthy environment) Text
NEW MEXICO
Atencio v. State, No. A-1-CA-42006, 2025 WL 1621659 (N.M. Ct. App. June 3, 2025) (pollution control clause in state constitution did not create individual right to pollution control) Text
Sanders-Reed ex rel. Sanders-Reed v. Martinez, 2015-NMCA-063, 350 P.3d 1221 (seeking judgment declaring that common law public trust doctrine-imposed duty on state to regulate greenhouse gas emissions) Text
NEW YORK
Glen Oaks Vill. Owners, Inc. v. City of New York, No. 42, 2025 WL 1458090 (N.Y. May 22, 2025) (state climate law did not preempt local emissions law) Text
Greenidge Generation LLC v. New York State Dep’t of Env’t Conservation, 86 Misc. 3d 338, 223 N.Y.S.3d 846 (N.Y. Sup. Ct. 2024) (finding that renewed permit for power plant would be inconsistent with emissions limit complied with law) Text
Glen Oaks Vill. Owners, Inc. v. City of New York, 227 A.D.3d 523, 211 N.Y.S.3d 329 (2024), rev’d, No. 42, 2025 WL 1458090 (N.Y. May 22, 2025) (city failed to show state climate protection act did not preempt local law) Text
Danskammer Energy, LLC v. New York State Dep’t of Env’t Conservation, 76 Misc. 3d 196, 173 N.Y.S.3d 134 (N.Y. Sup. Ct. 2022) (state law authorized denial of air permit application based on inconsistency with emissions limits) Text
OREGON
Nw. Nat. Gas Co. v. Env’t Quality Comm’n, 329 Or. App. 648, 542 P.3d 71, 74 (2023) (climate protection program rules for greenhouse gases are invalid) Text
Chernaik v. Brown, 367 Or. 143 P.3d 68 (2020) (public trust doctrine does not extend to fish, wildlife, or atmosphere) Text
Chernaik v. Brown, 295 Or. App. 584, 436 P.3d 26 (2019) (seeking declaratory and equitable relief for state’s alleged failure to protect state’s public-trust resources from effects of climate change) Text
Chernaik v. Kitzhaber, 263 Or. App. 463, 328 P.3d 799 (2014) (alleging that defendants violated their duties to uphold public trust and protect State’s atmosphere from impacts of climate change)
PENNSYLVANIA
Shirley v. Pennsylvania Legislative Reference Bureau, 318 A.3d 832 (Pa. 2024) (environmental organizations could intervene in lawsuit concerning legality of greenhouse-case initiative concerning fossil fuel power plants) Text
Pennsylvania Env’t Def. Found. v. Commonwealth, 673 Pa. 603, 279 A.3d 1194 (2022) (appropriation of funds from Oil and Gas Lease Fund did not violate Environmental Rights Amendment) Text
Funk v. Wolf, 144 A.3d 228 (Pa. Commw. Ct. 2016) (State’s executive authorities do not have to create a comprehensive plan to regulate greenhouse gases) Text
Funk v. Com., Dep’t of Envtl. Prot., 71 A.3d 1097 (Pa. Commw. Ct. 2013) (alleging defendant was required to submit citizen’s petition for rulemaking regarding proposed reduction of fossil fuel carbon dioxide emissions to the Environmental Quality Board) Text
SOUTH DAKOTA
In re Otter Tail Power Co. ex rel. Big Stone II, 744 N.W.2d 564 (S.D. 2008) (threat posed by climate change is a judgment call by the agency) Text
TEXAS
Blue Skies Alliance v. Texas Comm’n on Envtl. Quality, 283 S.W.3d 525 (Tex. App. 2009) (power plant would not violate NAAQS for ozone) Text
UTAH
Natalie R. v. State, 2025 UT 5, 567 P.3d 550 (youth climate case is moot) Text
VERMONT
In re Vermont Gas Sys., Inc., 2024 VT 2, 218 Vt. 587, 312 A.3d 519 (2024) (contract would sufficiently implement Vermont Global Warming Solutions Act’s greenhouse gas reduction requirements) Text
VIRGINIA
Layla H. by Hussainzadah v. Commonwealth, 81 Va. App. 116, 902 S.E.2d 93 (2024) (plaintiffs lacked standing to bring claims alleging state policy of approving fossil fuel permits caused climate change) Text
Mirant Potomac River, LLC v. Virginia, No. 2067-08-2, 2009 WL 1748524 (Va. Ct. App. June 23, 2009) (state cap and trade permit program violated the CAA) Text
WASHINGTON
Aji P. v. State of Washington, No. 80007-8-1, 2021 WL 423133 (Wash. Ct. App. Feb. 8, 2021) (state constitution does not address climate change) Text
Ass’n of Washington Bus. v. Washington State Dep’t of Ecology, 195 Wash. 2d 1, 455 P.3d 1126 (2020) (petitioned for review of clean air rule, as part of greenhouse gas emission reduction unit program, natural gas distributors and petroleum product producers to pay to offset the emissions)
Cascade Bicycle Club v. Puget Sound Reg’l Council, 175 Wash. App. 494, 306 P.3d 1031 (2013) (review of regional transportation plan) Text
Okeson v. City of Seattle, 150 P.3d 556 (Wash. 2007) (challenging utilities’ plan to mitigate greenhouse gas emissions) Text