Kathy Mulvey
@kathymulvey.bsky.social
Corporate accountability campaigner @ucsusa.bsky.social, exposing and challenging fossil fuel industry climate deception and working to make polluters pay.
Reposted by Kathy Mulvey
The Endangerment Finding has been in place for over 15 years, in that time prompting significant reductions in heat-trapping emissions and saving countless lives by cutting the fossil fuel pollution that triggers asthma attacks and heart disease.
Trump Administration Takes Chainsaw to Science-Based Endangerment Finding Endangering Us All
EPA today announced its final rule to undo the agency’s 2009 endangerment finding and repeal standards that reduce the dependence of cars and trucks on fossil fuels. Statement by UCS President Dr. Gre...
www.ucs.org
February 12, 2026 at 7:06 PM
The Endangerment Finding has been in place for over 15 years, in that time prompting significant reductions in heat-trapping emissions and saving countless lives by cutting the fossil fuel pollution that triggers asthma attacks and heart disease.
Reposted by Kathy Mulvey
Consensus about the causes & threats of climate change is nearly universal in the scientific community after decades of research. Judges should have access to this information. We can't keep letting the deep-pocketed, destructive, deceptive fossil fuel industry override the public interest.
Big Oil Has Been Lying to Us for Decades: Don’t Let It off the Hook
As people and communities seek accountability, the industry is pleading for an escape hatch.
blog.ucs.org
February 9, 2026 at 7:38 PM
Consensus about the causes & threats of climate change is nearly universal in the scientific community after decades of research. Judges should have access to this information. We can't keep letting the deep-pocketed, destructive, deceptive fossil fuel industry override the public interest.
Reposted by Kathy Mulvey
More disturbing news today about the removal of scientific evidence from decision-making processes in our federal government. Censoring educational materials about the climate crisis will not make it go away - it will just make our public institutions less equipped to deal with it.
Climate science removed from judicial manual after GOP complaints
Republican attorneys general argued the new chapter would put judges “firmly on one side” of climate lawsuits against the fossil fuel industry.
www.eenews.net
February 9, 2026 at 7:38 PM
More disturbing news today about the removal of scientific evidence from decision-making processes in our federal government. Censoring educational materials about the climate crisis will not make it go away - it will just make our public institutions less equipped to deal with it.
Reposted by Kathy Mulvey
A big win today: a federal court found that the Trump administration’s sham report attacking climate science was created in secret by a hand-picked set of climate policy opponents, violating the Federal Advisory Committee Act. Read our statement here:
Court Rules Trump Administration’s Secret “Climate Working Group” Violated Federal Law
Court declared today that the Trump administration violated federal law when it secretly formed the “Climate Working Group” and tasked it with writing a dangerously slanted report used as the basis fo...
www.ucs.org
January 30, 2026 at 10:27 PM
A big win today: a federal court found that the Trump administration’s sham report attacking climate science was created in secret by a hand-picked set of climate policy opponents, violating the Federal Advisory Committee Act. Read our statement here:
Reposted by Kathy Mulvey
Today Michigan became the 11th state to sue the fossil fuel industry for climate deception, filing an antitrust suit in federal court against #BigOil companies ExxonMobil, Chevron, BP, and Shell, and trade association American Petroleum Institute
#BigOilLies #ClimateAccountability
#BigOilLies #ClimateAccountability
Michigan Sues Big Oil ‘Cartel’ for Conspiring to Block Clean Energy | Center for Climate Integrity
Michigan Becomes the 11th State to Take Oil Majors to Court for Climate Deception, Arguing They Violated Antitrust Laws to Limit Energy Options and Drive Up Costs
climateintegrity.org
January 23, 2026 at 7:51 PM
Today Michigan became the 11th state to sue the fossil fuel industry for climate deception, filing an antitrust suit in federal court against #BigOil companies ExxonMobil, Chevron, BP, and Shell, and trade association American Petroleum Institute
#BigOilLies #ClimateAccountability
#BigOilLies #ClimateAccountability
Reposted by Kathy Mulvey
Join UCS & allies for next week's National #MakePollutersPay Week of Action! We'll rally to support measures like climate superfunds and climate liability laws that hold big polluters accountable for damages to our climate and our communities. Learn more in this video from @polluterspay.bsky.social
Make Polluters Pay National Week of Action
YouTube video by Make Polluters Pay
www.youtube.com
January 22, 2026 at 9:37 PM
Join UCS & allies for next week's National #MakePollutersPay Week of Action! We'll rally to support measures like climate superfunds and climate liability laws that hold big polluters accountable for damages to our climate and our communities. Learn more in this video from @polluterspay.bsky.social
Reposted by Kathy Mulvey
Attribution science studies use the Carbon Majors data to link corporate emissions to real-world climate impacts that are harming ppl around the globe. One recent study found that emissions from the 178 Carbon Majors entities made 213 heatwaves reported between 2000-2023 more likely & more intense.
Systematic attribution of heatwaves to the emissions of carbon majors - Nature
Climate change made 213 historical heatwaves reported over 2000–2023 more likely and more intense, to which each of the 180 carbon majors (fossil fuel and cement producers) substantially contributed.
www.nature.com
January 21, 2026 at 2:42 PM
Attribution science studies use the Carbon Majors data to link corporate emissions to real-world climate impacts that are harming ppl around the globe. One recent study found that emissions from the 178 Carbon Majors entities made 213 heatwaves reported between 2000-2023 more likely & more intense.
Reposted by Kathy Mulvey
This year’s update of the Carbon Majors database, which tracks historical production data for 178 of the world's largest oil, gas, coal, and cement producers, is now available via @influencemap.bsky.social!
Carbon Majors: 2024 Data Update
A new briefing analyzing the latest emissions data from the Carbon Majors database.
carbonmajors.org
January 21, 2026 at 2:42 PM
This year’s update of the Carbon Majors database, which tracks historical production data for 178 of the world's largest oil, gas, coal, and cement producers, is now available via @influencemap.bsky.social!
Check out my latest blog, coauthored with my @ucs.org colleague Laura Peterson, on US imperialism and #BigOil in Venezuela. The Trump administration’s all-in position on oil is a losing bet, and this illegal imperial oil grab is yet another reason we must all rise up. blog.ucs.org/kathy-mulvey...
President Trump’s Imperial and Illegal Grab for Venezuelan Oil Is a Losing Bet
President Trump’s addiction to fossil fuels will not make people in the United States safer or richer. In fact, it will do the opposite by dragging us into a 19th-century-style imperial adventure that...
blog.ucs.org
January 13, 2026 at 3:16 PM
Check out my latest blog, coauthored with my @ucs.org colleague Laura Peterson, on US imperialism and #BigOil in Venezuela. The Trump administration’s all-in position on oil is a losing bet, and this illegal imperial oil grab is yet another reason we must all rise up. blog.ucs.org/kathy-mulvey...
Reposted by Kathy Mulvey
“President Trump’s withdrawal of the United States from the bedrock global treaty to tackle climate change is a new low and yet another a sign that this authoritarian, anti-science administration is determined to sacrifice people’s well-being and destabilize global cooperation."
Read UCS Statement:
Read UCS Statement:
Trump Sinks to New Low by Announcing US Withdrawal from 66 International Organizations, Including UNFCCC and IPCC
President Trump announced today that he is removing the United States from the UNFCCC and IPCC, as well as 64 other entities or U.N. organizations. Statements by the Union of Concerned Scientists.
www.ucs.org
January 8, 2026 at 1:33 AM
“President Trump’s withdrawal of the United States from the bedrock global treaty to tackle climate change is a new low and yet another a sign that this authoritarian, anti-science administration is determined to sacrifice people’s well-being and destabilize global cooperation."
Read UCS Statement:
Read UCS Statement:
Reposted by Kathy Mulvey
Today at #COP30: advocates from the US Gulf South, Latin America & Africa protested the unchecked expansion of massive new gas projects, which harm communities & undermine climate goals.
This is part of a global call for a fossil fuel phaseout, which has set the tone for COP30: dont-gas-africa.org
This is part of a global call for a fossil fuel phaseout, which has set the tone for COP30: dont-gas-africa.org
November 19, 2025 at 3:34 PM
Today at #COP30: advocates from the US Gulf South, Latin America & Africa protested the unchecked expansion of massive new gas projects, which harm communities & undermine climate goals.
This is part of a global call for a fossil fuel phaseout, which has set the tone for COP30: dont-gas-africa.org
This is part of a global call for a fossil fuel phaseout, which has set the tone for COP30: dont-gas-africa.org
Reposted by Kathy Mulvey
For years, fossil fuel lobbyists have swarmed international climate summits with a mission to derail progress, spread disinformation & dodge accountability. An international commitment to information integrity at #COP30 can help remove barriers to strong national climate solutions.
Bad COP to Good COP: Blocking Fossil-Fueled Disinformation in Belém and Beyond
How do we prevent industry obstruction of science-based policy, and what would a climate summit look like if fossil fuel interests were finally shut out?
blog.ucs.org
November 18, 2025 at 4:02 PM
For years, fossil fuel lobbyists have swarmed international climate summits with a mission to derail progress, spread disinformation & dodge accountability. An international commitment to information integrity at #COP30 can help remove barriers to strong national climate solutions.
Reposted by Kathy Mulvey
New analysis from #KickBigPollutersOut shows that 1600+ fossil fuel lobbyists have been granted access to #COP30 climate talks, proportionally a 12% increase from last year😖Fossil fuel lobbyists outnumber almost every country delegation, with 1/25 registrants repping the fossil fuel industry 😦
RELEASE: Fossil fuel lobbyists flood COP30 climate talks in Brazil, with largest ever attendance share | Kick Big Polluters Out
kickbigpollutersout.org
November 14, 2025 at 8:12 PM
New analysis from #KickBigPollutersOut shows that 1600+ fossil fuel lobbyists have been granted access to #COP30 climate talks, proportionally a 12% increase from last year😖Fossil fuel lobbyists outnumber almost every country delegation, with 1/25 registrants repping the fossil fuel industry 😦
Reposted by Kathy Mulvey
Organized climate obstruction activities are actively delaying the human response to the #climatecrisis, directly sabotaging international cooperation, making the Paris Agreement goals unattainable, and putting the lives of millions at risk. We must ban it from #COP30
Blocking fossil fuel disinformation in Belém and beyond
Fossil fuel companies should be barred from COP climate talks, where they attempt to derail discussions, and their disinformation must be tackled
www.climatechangenews.com
November 12, 2025 at 2:42 PM
Organized climate obstruction activities are actively delaying the human response to the #climatecrisis, directly sabotaging international cooperation, making the Paris Agreement goals unattainable, and putting the lives of millions at risk. We must ban it from #COP30
Reposted by Kathy Mulvey
ExxonMobil's new lawsuit against California’s agenda-setting climate disclosure laws underscores what decades of investigation and litigation have shown: they will go to nearly any length to avoid accountability for their role in the climate crisis. blog.ucs.org/laura-peters...
WTH, XOM? ExxonMobil Again Sues to Dodge Accountability
Large fossil fuel and cement companies are responsible for the vast majority of the emissions that science shows are driving changes in the earth’s climate.
blog.ucs.org
November 6, 2025 at 8:26 PM
ExxonMobil's new lawsuit against California’s agenda-setting climate disclosure laws underscores what decades of investigation and litigation have shown: they will go to nearly any length to avoid accountability for their role in the climate crisis. blog.ucs.org/laura-peters...
Ahead of the #COP30 international climate negotiations in Brazil, I decided to imagine what a COP free from #fossilfuel industry influence would look like. #ClimateAccountability blog.ucs.org/kathy-mulvey...
Imagining a COP Free from Fossil Fuel Industry Influence
COP30 will be a pivotal moment in global efforts to limit the worst impacts of climate change and advance a just transition centering workers, communities, and Indigenous Peoples.
blog.ucs.org
November 7, 2025 at 2:20 PM
Ahead of the #COP30 international climate negotiations in Brazil, I decided to imagine what a COP free from #fossilfuel industry influence would look like. #ClimateAccountability blog.ucs.org/kathy-mulvey...
Reposted by Kathy Mulvey
"ExxonMobil will go to nearly any length to avoid accountability for its role in the climate crisis."
@ucs.org @ucsclimate.bsky.social
@ucs.org @ucsclimate.bsky.social
WTH, XOM? ExxonMobil Again Sues to Dodge Accountability
Large fossil fuel and cement companies are responsible for the vast majority of the emissions that science shows are driving changes in the earth’s climate.
blog.ucs.org
November 5, 2025 at 4:09 PM
"ExxonMobil will go to nearly any length to avoid accountability for its role in the climate crisis."
@ucs.org @ucsclimate.bsky.social
@ucs.org @ucsclimate.bsky.social
Reposted by Kathy Mulvey
Advocates in New Zealand secured a public apology from Z Energy after legal action. The petroleum retailer took out full-page ads in newspapers apologizing for "any confusion" caused by a greenwashing 2022 PR campaign that misrepresented its focus on alternative fuels & emissions reductions.
Z Energy apologises for 2022 ad campaign after legal action
Consumer and two environmental groups took legal action claiming the campaign was misleading and greenwashing.
www.rnz.co.nz
November 5, 2025 at 2:58 PM
Advocates in New Zealand secured a public apology from Z Energy after legal action. The petroleum retailer took out full-page ads in newspapers apologizing for "any confusion" caused by a greenwashing 2022 PR campaign that misrepresented its focus on alternative fuels & emissions reductions.
Fossil fuel industry attacks on climate accountability litigation and campaigning make this "a perilous moment for democratic norms and institutions,” as I told @danad1012.bsky.social.
There is draft legislation in Congress that #BigOil has been lobbying on "related to state efforts to impose liability on the oil and gas industry"
Meanwhile, 103 House Republicans filed an amicus brief to #SCOUTS urging it to intervene to stop climate suits
insideclimatenews.org/news/2610202...
Meanwhile, 103 House Republicans filed an amicus brief to #SCOUTS urging it to intervene to stop climate suits
insideclimatenews.org/news/2610202...
Trump and Republicans Join Big Oil’s All-Out Push to Shut Down Climate Liability Efforts - Inside Climate News
Republican attorneys general, GOP lawmakers, industry groups and the president himself are all maneuvering to foreclose the ability of cities and states to hold the fossil fuel industry liable for dam...
insideclimatenews.org
October 28, 2025 at 1:42 PM
Fossil fuel industry attacks on climate accountability litigation and campaigning make this "a perilous moment for democratic norms and institutions,” as I told @danad1012.bsky.social.
Reposted by Kathy Mulvey
Disasters like Odette are becoming more frequent & intense due to the fossil fuel-driven climate crisis. Shell has known for decades that fossil fuels stood to cause dangerous climate change, but chose to deceive the public, spread disinformation, and delay climate action to protect its profits.
Decades of Deceit
Why the case against the major fossil fuel companies for fraud and climate damages is so strong.
www.ucs.org
October 23, 2025 at 1:47 PM
Disasters like Odette are becoming more frequent & intense due to the fossil fuel-driven climate crisis. Shell has known for decades that fossil fuels stood to cause dangerous climate change, but chose to deceive the public, spread disinformation, and delay climate action to protect its profits.
Reposted by Kathy Mulvey
67 people from the Philippines have announced legal action against fossil fuel giant #Shell. The claimants suffered harm from Typhoon Odette in 2021, including serious injuries, deaths of loved ones, or losing their homes. UCS stands w/ the claimants as they demand compensation. #MakePollutersPay
Is Shell to blame for a ‘super typhoon’? Philippines survivors to sue oil giant in legal first
Typhoon Rai killed more than 400, displaced nearly 3.2 million, and destroyed more than a million homes in 2021
www.theguardian.com
October 23, 2025 at 1:47 PM
67 people from the Philippines have announced legal action against fossil fuel giant #Shell. The claimants suffered harm from Typhoon Odette in 2021, including serious injuries, deaths of loved ones, or losing their homes. UCS stands w/ the claimants as they demand compensation. #MakePollutersPay
Reposted by Kathy Mulvey
🎉Historic Court win🎉
The greenwashing adverts of fossil fuel giant TotalEnergies have been ruled illegal, in a case taken by
@amisdelaterre.org, @greenpeace.fr & @notreaffaireatous.bsky.social with our support. 1/4
The greenwashing adverts of fossil fuel giant TotalEnergies have been ruled illegal, in a case taken by
@amisdelaterre.org, @greenpeace.fr & @notreaffaireatous.bsky.social with our support. 1/4
October 23, 2025 at 12:50 PM
🎉Historic Court win🎉
The greenwashing adverts of fossil fuel giant TotalEnergies have been ruled illegal, in a case taken by
@amisdelaterre.org, @greenpeace.fr & @notreaffaireatous.bsky.social with our support. 1/4
The greenwashing adverts of fossil fuel giant TotalEnergies have been ruled illegal, in a case taken by
@amisdelaterre.org, @greenpeace.fr & @notreaffaireatous.bsky.social with our support. 1/4
Reposted by Kathy Mulvey
Today's rally @ the MA State House in support of the climate superfund bill (H.1014/S.588) featured powerful art showing what's at stake in the movement for #ClimateJustice. We called on our legislators to #MakePollutersPay for their share of adaptation costs in the climate crisis they helped cause.
October 21, 2025 at 8:38 PM
Today's rally @ the MA State House in support of the climate superfund bill (H.1014/S.588) featured powerful art showing what's at stake in the movement for #ClimateJustice. We called on our legislators to #MakePollutersPay for their share of adaptation costs in the climate crisis they helped cause.
Reposted by Kathy Mulvey
US banking regulators just withdrew guidance from 2 years ago on how big banks should manage climate risks.
The science hasn’t changed & the risks have only grown. The only difference is who’s in the White House.
So much for the Fed’s vaunted “independence” from politics.
The science hasn’t changed & the risks have only grown. The only difference is who’s in the White House.
So much for the Fed’s vaunted “independence” from politics.
@federalreserve.gov, Federal Deposit Insurance Corporation, and the Office of the Comptroller of the Currency announce withdrawal of principles for climate-related financial risk management: www.federalreserve.gov/newsevents/p...
Agencies announce withdrawal of principles for climate-related financial risk management
The federal bank regulatory agencies today announced the withdrawal of interagency Principles for Climate-Related Financial Risk Management for Large Financial
www.federalreserve.gov
October 17, 2025 at 10:31 PM
US banking regulators just withdrew guidance from 2 years ago on how big banks should manage climate risks.
The science hasn’t changed & the risks have only grown. The only difference is who’s in the White House.
So much for the Fed’s vaunted “independence” from politics.
The science hasn’t changed & the risks have only grown. The only difference is who’s in the White House.
So much for the Fed’s vaunted “independence” from politics.
Reposted by Kathy Mulvey
New study shows fossil fuel industry only contributes to 1.42% of global renewable energy. The largest 250 oil & gas companies may only produce 0.1% of their primary energy from renewable sources. Their actual investment in clean energy is negligible compared to their massive fossil fuel extraction.
Oil and gas industry’s marginal share of global renewable energy
Nature Sustainability - The decarbonization of oil and gas companies may not be as speedy or robust as advertised. This analysis finds that renewable energies make up just a minor fraction of the...
www.nature.com
October 10, 2025 at 2:11 PM
New study shows fossil fuel industry only contributes to 1.42% of global renewable energy. The largest 250 oil & gas companies may only produce 0.1% of their primary energy from renewable sources. Their actual investment in clean energy is negligible compared to their massive fossil fuel extraction.