Legally Speaking


April 8, 2021
As infrastructure moves ahead, fundamentals still matter; nuclear storage site draws lawsuit; questions about gas drilling in SF Bay area; and more.

March 25, 2021
Valuing climate costs; AGs challenge GHG threshold rule; shaping energy efficiency priorities; FERC sets key emissions analysis precedent; and more.

March 11, 2021
Capitol Hill turns to the climate crisis, with opportunities for AGs; state AGs press EPA on ozone, lead pipes; legislation to watch; and more. 

February 25, 2021
Climate, justice and equity at FERC; AGs back stronger protections for gas pipeline challengers; an innovative new program from NYPSC; and more. 

February 11, 2021
Biden administration sets new tone on climate, environmental justice; state AGs continue vital on-the-ground enforcement efforts; and more.

January 28, 2021
Looking ahead to a new era; state AGs file nine lawsuits challenging midnight regulatory actions by the outgoing Trump administration; and more.

January 7, 2021
New report from the State Impact Center; AGs file amicus briefs on climate liability, CWA Nationwide Permit 12; Arctic Refuge lease sale; and more.

December 17, 2020
Fossil fuel favoritism on full display; AGs slam EPA's methane regs rollback in opening brief; EPA Air Office plows ahead in final weeks; and more.

December 3, 2020
Arctic Refuge lease sale scheduled; pushing energy markets toward decarbonization; AGs add endangered species claim to NEPA challenge; and more.

November 12, 2020
Last-minute actions by the outgoing administration; AGs sue over energy efficiency failures; lawsuits over PFAS, PCB contamination; and more.


October 29, 2020
A new book from the State Impact Center; Massachusetts AG marks milestone 200 actions; AGs call for meaningful airplane emissions standards; and more.

October 15, 2020
Erosion of environmental enforcement; AGs defend habitat designations, state clean water authority; EPA rescinds long-standing air policy; and more.

October 1, 2020
ACE v. CPP: 3 things to watch for in next week's arguments; state AGs file amicus brief in Dakota Access litigation; Tongass protections in jeopardy; and more.

September 17, 2020
A flurry of major legal actions by state AGs on NEPA, Arctic Refuge, Endangered Species Act, methane regulations, Chesapeake Bay and more.

August 20, 2020
Lessons from Alaska; AGs notch win in defense of migratory birds; AGs challenge LNG-by-rail rule; Arctic Refuge drilling plan moves forward; and more.

August 6, 2020
The administration's NEPA hypocrisy; AGs blast plan to skew Clean Air Act cost-benefit; two FERC nominees, at last; EPA OIG investigation; and more.

July 23, 2020
Two major court defeats for the administration; big win for NY AG on cross-state pollution; mixed bag for clean energy at FERC; and more.


July 9, 2020
The truth behind recent pipeline decisions; AGs press EPA to tighten PM standards, regulate O&G methane; CA adopts new electric truck rule; and more.

June 25, 2020
Environmental racism and NEPA; A Pass to Pollute; AGs weigh in on net metering, rooftop solar; FERC plans carbon pricing conference; and more.


June 11, 2020
EPA's failure to protect the public from toxic substances; AGs seek halt to EPA 'non-enforcement policy;' new infrastructure executive order; and more.

May 28, 2020
COVID, cars and the dangers of 'deregulation'; AGs challenge weakened car rule; AGs blast 'secret science' proposal; limits on EPA guidance; and more.

May 14, 2020
Environmental injustice and COVID-19; AGs challenge EPA 'non-enforcement' policy, narrowed WOTUS rule; new questions about SAFE Vehicles rule; and more.

April 30, 2020
FERC encroachment on states' energy prerogatives; AGs file opening brief in ACE litigation; net metering, roof-top solar growth at risk; and more.


April 16, 2020
Lessons from the Deepwater Horizon disaster; Earth Day at 50; AGs push back on EPA non-enforcement policy; CWA Sec. 401 rule under review; and more.

April 2, 2020
Flattening the climate curve; AGs blast fuel efficiency rollback, proposal to weaken MBTA protections; EPA waives enforcement amid pandemic; and more.


March 19, 2020
Air pollution and our health; AGs denounce attacks on NEPA, regulatory enforcement; DOJ ends use of popular environmental settlement tool; and more.

A greyscale image of a hand holding a lightbulb.
March 5, 2020
The administration's latest culture war; AGs continue fight for lightbulb efficiency standards; EPA and Interior's new anti-science rules; and more.

February 20, 2020
Corporate environmental accountability; states urge stronger lead, ethylene oxide rules; latest PFAS settlement; White House budget cuts; and more. 


February 6, 2020
WOTUS rule defies science; AGs sue EPA over chemical accident rule rollback; Interior Department moves to severely weaken bird protections; and more. 


January 23, 2020
Hazards of LNG by rail; AGs oppose expanded leasing in Alaska reserve; new cross-state air pollution lawsuits; benefits of declining coal; and more.


January 9, 2020
CEQ proposes regulations restricting NEPA reviews; AGs challenge WOTUS rollback; EPA Science Advisory Board criticizes analysis of major proposals; and more.


December 19, 2019
Wrong direction on GHG emissions reductions; AGs object to proposed removal of Tongass protections; FERC deals major blow to clean energy; and more.


December 5, 2019
AGs blast rollback of methane emissions regulations, sue over clean car standards; EPA considers adding PFAS to Toxics Release Inventory; and more.


November 14, 2019
EPA tries to ditch science; lightbulb efficiency rollbacks; federal judge rules for AGs in landfill methane case, another suit on PFAS; and more. 


October 31, 2019
Scary safety rollbacks; regulating "bomb trains"; states' authority on clean energy and clean water; toxic Superfund cleanup litigation; and more.


October 17, 2019
States' energy mixes continue to shift toward clean sources; AGs intervene to defend EPA's authority to regulate greenhouse gases; AGs weigh in on New Source Review permitting; and more.


October 3, 2019
New report on state AGs and clean energy; AGs sue to defend Endangered Species Act; AGs fight withdrawal of CA auto emissions authority; FERC proposes PURPA rule changes; and more.


September 19, 2019
EPA revokes CA auto emissions authority; AGs continue defense of efficiency standards; EPA rolls back WOTUS; BLM releases Arctic Refuge EIS; and more.


September 5, 2019
EPA proposes rollback of methane emissions regulations; DOE rolls back lightbulb efficiency rule; AGs weigh in to defend NEPA reviews; new developments on landfill methane; and more.


August 22, 2019
State AGs advocate for conservation & endangered species; states challenge ACE power plant emissions rule; Royalty Policy Committee decision; and more.


August 8, 2019
Judge rules AGs have standing to challenge MBTA changes; states press Congress to address PFAS crisis; AGs defend EPA advisory committees; and more.


July 25, 2019
State AGs and climate optimism; new developments in fight over Clean Car Standards; AGs file amicus in Maui Clean Water Act case; and more.


July 11, 2019
State attorneys general pledge to fight ACE rule; MA & CA lead suit on asbestos reporting requirements; Canada adopts CA car standards; FOIA integrity issues; and more.


June 20, 2019
The Endangered Species Act in a changing climate; AGs press BLM on coal leasing impacts, methane waste; AGs rebuke EPA groundwater guidance; and more.


June 6, 2019
Vulnerabilities in the administration's most dangerous rollbacks; states leading response to PFAS crisis; climate science under threat; and more.


May 23, 2019
A case for climate optimism; AGs push back against EPA budget cuts; legal and congressional developments on PFAS; a FOIA court victory; and more.


May 9, 2019
An overview of threats to states' energy and environmental authority; a new clean energy op-ed; a major win on methane emissions; and more.


April 25, 2019
David J. Hayes on the administration's approach to rulemaking; 15 AGs oppose EPA "Dirty Water Rule;" 21 AGs defend MATS air pollution rule; and more.


April 11, 2019
David J. Hayes on flaws in Interior's approach to Arctic Refuge drilling; states challenge Two-for-One executive order; new study from the Institute for Policy Integrity; and more.


March 28, 2019
An update on the Health & Environmental Settlements Project; AGs defend states' authority over water quality permitting; a rehearing on chlorpyrifos; and more.


March 14, 2019
Announcing a new Special Report; AGs oppose plan to drill in the Arctic Refuge; AGs seek preliminary injunctions to block seismic testing; and more.


February 21, 2019
David J. Hayes on energy efficiency standards; 18 states challenge EPA's Clean Car Standards rollback; Massachusetts Attorney General Healey advocates for offshore wind; and more.


February 7, 2019
EPA's PFAS Management Plan; New York Attorney General Letitia James sues EPA over upwind pollution; Colorado & Michigan Withdraw from Clean Power Plan lawsuit; and more.


January 24, 2019
States are leading the clean energy revolution; California Attorney General Xavier Becerra leads $800M diesel emissions scandal settlement; seismic testing permits on hold; and more.


January 10, 2019
Bipartisan coalition of state attorneys general oppose seismic testing in the Atlantic; State Impact Center Executive Director David J. Hayes outlines key issues of 2019; and more.


December 13, 2018
New Jersey Attorney General Gurbir Grewal launches new Environmental Enforcement and Environmental Justice section; State Impact Center launches new website; and more.


November 29, 2018
State Impact Center Executive Director David J. Hayes outlines key takeaways from the Fourth National Climate Assessment; SCOTUS issues opinion in dusky gopher frog case; and more. 


November 8, 2018
Op-ed by State Impact Center Executive Director David J. Hayes on Trump administration's deregulatory agenda; EPA proposes rule to delay landfill methane standards; and more.


October 25, 2018
Current and former state attorneys general offer support for ExxonMobil investigations in New York and Massachusetts; Trump administration backs down on anti-science proposal; and more.


October 11, 2018
State attorneys general testify on proposed Clean Power Plan replacement; an important development in EPA methane litigation; Legally Speaking moves to bi-weekly schedule; and more.


September, 2018
State attorneys general defend vehicle emissions standards; Coalitions of state attorneys general defend Migratory Bird Treaty Act, Endangered Species Act; and more.


August, 2018
New York Attorney General Barbara Underwood leads coalition of 11 states in successfully defending rule to prevent chemical accidents; and more.


July, 2018
EPA backs down over glider truck rule; state attorneys general file amicus brief requesting Supreme Court overturn lower court ruling on hydrofluorocarbons, and more.


June, 2018
Op-ed by State Impact Center Executive Director David J. Hayes and Lynn Scarlett; state attorneys general challenge "Two-for-one" Executive Order; and more.


May, 2018
State attorneys general oppose bailouts for failing coal plants; sue EPA to protect agricultural workers from exposure to toxic pesticides; and more.


April, 2018
Fifteen state attorneys general sue EPA on illegal delay of methane emission standards; twelve attorneys general issue statement opposing clean car standards rollback; and more.


March, 2018
State attorneys general secure victory against EPA in smog lawsuit; Maryland Attorney General Brian Frosh leads amicus brief on coal ash pollution; and more.


February, 2018
Announcing a major report from the State Energy & Environmental Impact Center; a profile of New Mexico Attorney General Hector Balderas; and more.


January, 2018
State attorneys general oppose offshore drilling; Massachusetts Attorney General Maura Healey advocates for ratepayers; and more.


December, 2017
15 state attorneys general sue EPA to defend Clean Air Act requirements; California Attorney General Xavier Beccera leads bipartisan opposition to National Parks fee hikes; and more.


November, 2017
Six state attorneys general urge Congress to reinstate Federal Flood Standard; state attorneys general request hearings on Clean Power Plan Repeal; and more.