Exxon CEO Rex Tillerson is, strangely, the most pro-climate Trump nominee

Tillerson comes from a company that is struggling to come to grips with its role in global warming.
 By 
Andrew Freedman
 on 
Original image replaced with Mashable logo
Original image has been replaced. Credit: Mashable

The nomination of ExxonMobil Corp. CEO Rex Tillerson to be secretary of state is being roundly pilloried by environmentalists, who see him as the human embodiment of a barrel of crude oil.

"Picking Rex Tillerson as for secretary of state makes Big Oil the face of foreign policy and a mockery of U.S. climate leadership," Environment America’s executive director Margie Alt said in a statement.

Yet compared to other Trump cabinet nominees, such as climate deniers Scott Pruitt and Rick Perry, who, if confirmed, would lead the EPA and Energy Department, respectively, Tillerson almost seems like a liberal on the climate issue.

Of course, he is not, and Exxon is currently under investigation by the attorneys general of Massachusetts, New York and the U.S. Virgin Islands for researching climate change in the 1970s and then deliberately misleading investors and the public about its connections to fossil fuel burning. The investigations and activism surrounding it are known by the hashtag #ExxonKnew.

However, simply because of the extreme views at the top of other agencies, it's possible that Tillerson would be a moderating voice within the Trump cabinet on climate change, assuming he's confirmed.

Original image replaced with Mashable logo
Original image has been replaced. Credit: Mashable

A search through the company's archive of public speeches and reading of Steve Coll's in-depth account of Exxon's history, "Private Empire," shows that Tillerson is leading a company that is increasingly operating in a political environment that favors taking action to reduce greenhouse gas emissions.

That's why as CEO, Tillerson moved to have the company acknowledge the central role that human-caused greenhouse gas emissions play in global warming, and advocated for a revenue neutral carbon tax as the most economically elegant solution to putting a price on carbon emissions.

During a speech before an oil and gas conference in London in October, for example, Tillerson said:

"We have long supported a carbon tax as the best policy of those being considered. Replacing the hodge-podge of current, largely ineffective regulations with a revenue-neutral carbon tax would ensure a uniform and predictable cost of carbon across the economy."

Under Tillerson's leadership, Exxon has favored research into biofuels and carbon capture and storage technologies, both of which would still allow oil and natural gas to be burned far into the future despite global warming risks.

"At ExxonMobil, we share the view that the risks of climate change are serious and warrant thoughtful action," Tillerson said at a conference in Washington in May.

Exxon has also, at least publicly, been supportive of the Paris Climate Agreement that entered into force on Nov. 4. Trump has promised to back out of that agreement, but Tillerson may seek to convince him otherwise.

If Exxon, the most recalcitrant oil company out there when it comes to favoring climate change action, is in favor of a climate treaty, shouldn't Trump be, too?

Tillerson has often talked about the primary goal of alleviating energy poverty, which is another way of saying that the number one priority is to expand access to electricity.

Exxon sees more efficient oil and natural gas plants as the easiest way of doing that, whereas climate activists, technology leaders and many world leaders, like Indian Prime Minister Narendra Modi, have been pushing renewables as a way to leapfrog developing countries over dirtier technologies.

"Energy demand and economic opportunity are inextricably linked. Expanding energy supplies safely and responsibly have and will continue to be essential to improving living standards around the world," Tillerson told the London audience.

Still, there are many reasons to question Tillerson’s climate change bona fides. First, some of the climate deniers that his company funded are now involved in the Trump administration’s transition at the EPA, Energy Department and other parts of the bureaucracy. Second, Exxon never joined with other oil and gas companies in an open letter, which was sent during the Paris negotiations, favoring a global carbon price and the 2-degree limit.

Also, Exxon’s view that the priority should be placed on increasing access to energy, through fossil fuels, runs up against that of the World Bank and other institutions, which place much more emphasis on steering clear of climate risks that could set back development.

He may talk the talk sometimes, but...

Environmentalists see Tillerson's nomination as a staggering development considering Exxon's reputation as one of the largest funders of an organized climate science disinformation campaign that in some ways still goes on today.

Friends of the Earth U.S. president Erich Pica pointed this out in his response to the nomination.

"For decades ExxonMobil covered up its knowledge of the link between fossil fuels and climate change, while funding climate denial groups," he said in a statement.

"More recently, it has continued to cynically fund climate denial and used its trade organization the American Petroleum Institute to undermine climate initiatives like the Clean Power Plan, even as it publicly called for a revenue-neutral carbon tax to solve climate change."

Original image replaced with Mashable logo
Original image has been replaced. Credit: Mashable

The company has refused to incorporate a planning scenario into its business planning in which the global community decides to dramatically cut carbon emissions in order to meet a 2-degree Celsius, or 3.6 degrees Fahrenheit, temperature target, which leaders agreed to in Paris last year, despite mounting shareholder support for such a climate change stress test.

Instead, the company has poured millions into tar sands oil fields in Alberta, which contain some of the dirtiest, most greenhouse gas intensive oil on the planet.

Unlike some of their competitors, such as Shell and Total, Exxon's leaders have continued to envision a future in which its oil and gas reserves, which stretch from Siberia to Africa and the Gulf of Mexico, can all be drilled and burned for energy despite the climate change consequences.

Topics Donald Trump

Mashable Image
Andrew Freedman

Andrew Freedman is Mashable's Senior Editor for Science and Special Projects. Prior to working at Mashable, Freedman was a Senior Science writer for Climate Central. He has also worked as a reporter for Congressional Quarterly and Greenwire/E&E Daily. His writing has also appeared in the Washington Post, online at The Weather Channel, and washingtonpost.com, where he wrote a weekly climate science column for the "Capital Weather Gang" blog. He has provided commentary on climate science and policy for Sky News, CBC Radio, NPR, Al Jazeera, Sirius XM Radio, PBS NewsHour, and other national and international outlets. He holds a Masters in Climate and Society from Columbia University, and a Masters in Law and Diplomacy from The Fletcher School at Tufts University.

Mashable Potato

Recommended For You
Apple announces new MacBook Pro with M5 Pro and M5 Max chips, raises MacBook starting prices
man using m5 macbook pro with telescope at night for astrophotography

How to watch all of the 2026 Best Picture Oscar nominees
Leonardo DiCaprio, Jessie Buckley, Timothee Chalamet, Emma Stone, and Michael B. Jordan stills from Oscar Best Picture nominees




More in Science
How to watch Chelsea vs. Port Vale online for free
Alejandro Garnacho of Chelsea reacts

How to watch 'Wuthering Heights' at home: Margot Robbie and Jacob Elordi's controversial romance now streaming
Margot Robbie and Jacob Elordi embracing in still from "Wuthering Heights"

How to watch New York Islanders vs. Philadelphia Flyers online for free
Matthew Schaefer of the New York Islanders warms up

How to watch Mexico vs. Belgium online for free
Israel Reyes of Mexico reacts

How to watch Brazil vs. Croatia online for free
Vinicius Junior #10 of Brazil leaves

Trending on Mashable
NYT Connections hints today: Clues, answers for April 3, 2026
Connections game on a smartphone

NYT Connections hints today: Clues, answers for April 4, 2026
Connections game on a smartphone

Wordle today: Answer, hints for April 3, 2026
Wordle game on a smartphone

Google launches Gemma 4, a new open-source model: How to try it
Google Gemma

Wordle today: Answer, hints for April 4, 2026
Wordle game on a smartphone
The biggest stories of the day delivered to your inbox.
These newsletters may contain advertising, deals, or affiliate links. By clicking Subscribe, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy.
Thanks for signing up. See you at your inbox!