Of the
major oil corporations, ExxonMobil has been the most active in the debate surrounding climate change. In 2005, as competing major oil companies diversified into
alternative energy and
renewable fuels, ExxonMobil re-affirmed its mission as an oil and
gas company. According to a 2007 analysis by the
Union of Concerned Scientists, the company used
many of the same strategies, tactics, organizations, and personnel the
tobacco industry used in its denials of the link between lung
cancer and smoking. ExxonMobil denied similarity to the tobacco industry. A study published in
Nature Climate Change in 2015 found that ExxonMobil "may have played a particularly important role as corporate benefactors" in the production and diffusion of contrarian information. During the 1990s and 2000s Exxon helped advance climate change denial internationally. ExxonMobil was a significant influence in preventing ratification of the
Kyoto Protocol by the United States. ExxonMobil funded organizations critical of the Kyoto Protocol and seeking to undermine public opinion about the scientific consensus that
global warming is caused by the burning of
fossil fuels. Exxon was a founding member of the board of directors of the
Global Climate Coalition, composed of businesses opposed to greenhouse gas emission regulation. According to
Mother Jones magazine, between 2000 and 2003 ExxonMobil channelled at least $8,678,450 to forty organizations that employed disinformation campaigns including "skeptic propaganda masquerading as journalism" to influence the opinion of the public and political leaders about global warming. ExxonMobil has funded, among other groups, the
Competitive Enterprise Institute,
George C. Marshall Institute,
Heartland Institute, the
American Legislative Exchange Council and the
International Policy Network. Since the
Kyoto Protocol, Exxon has given more than $20 million to organizations supporting climate change denial. Between 1998 and 2004, ExxonMobil granted $16 million to advocacy organizations which disputed the impact of global warming. The
Royal Society conducted a survey in 2006 that found ExxonMobil had given US$2.9 million to American groups that "misinformed the public about climate change", 39 of which "misrepresented the science of climate change by outright denial of the evidence". The Royal Society expressed "concerns about ExxonMobil's funding of lobby groups that seek to misrepresent the scientific evidence relating to climate change." Also in 2006, the Royal Society issued a demand that ExxonMobil withdraw funding for climate change denial. The letter drew criticism, notably from
Timothy Ball who argued the society attempted to "politicize the private funding of science and to censor scientific debate". According to
Drexel University environmental sociologist Robert Brulle, ExxonMobil contributed about 4% of the total funding of what Brulle identifies as the "climate change counter-movement." The Drexel research found that much of the funding that direct sourcing from companies like ExxonMobil and
Koch Industries was later diverted through third-party foundations like
Donors Trust and
Donors Capital to avoid traceability. In 2006, the
Brussels-based watchdog organization
Corporate Europe Observatory said "ExxonMobil invests significant amounts in letting think-tanks, seemingly respectable sources, sow doubts about the need for [European Union] governments to take action to reduce greenhouse gas emissions. Covert funding for
climate sceptics is deeply hypocritical because ExxonMobil spends major sums on advertising to present itself as an environmentally responsible company." Between 2007 and 2015, ExxonMobil gave $1.87 million to Republicans in congress and $454,000 to the
American Legislative Exchange Council. ExxonMobil denied funding climate denial. ExxonMobil was a member of ALEC's "Private Enterprise Advisory Council"it left ALEC in 2018 [https://www.reuters.com/article/us-exxon-mobil-alec-idUSKBN1K231R. In January 2007, ExxonMobil vice president for
public affairs Kenneth Cohen said that, as of 2006, ExxonMobil had ceased funding of the
Competitive Enterprise Institute and "'five or six' similar groups". While ExxonMobil did not identify the other similar groups, a May 2007 report by
Greenpeace listed five groups "at the heart of the climate change denial industry" ExxonMobil had stopped funding, as well as 41 similar groups which were still receiving ExxonMobil funds. In May 2008, ExxonMobil pledged in its annual corporate citizenship report that it would cut funding to "several public policy research groups whose position on climate change could divert attention" from the need to address climate change. In 2008, ExxonMobil funded such organizations and was named one of the most prominent promoters of climate change denial. According to Brulle in a 2012
Frontline interview, ExxonMobil had ceased funding the climate change counter-movement by 2009. ExxonMobil granted $10,000 to the
Science & Environmental Policy Project founded by climate denial advocate, physicist, and environmental scientist
Fred Singer and earlier funded the work of solar physicist
Wei-Hock "Willie" Soon, who said that most global warming is caused by solar variation. From 1989 till April 2010, ExxonMobil and its predecessor Mobil purchased regular Thursday advertorials in
The New York Times,
The Washington Post, and
The Wall Street Journal that said that the science of climate change was unsettled. In 2000, responding to the 2000 US
First National Assessment of Climate Change, an ExxonMobil advertorial said "The report's language and logic appear designed to emphasize selective results to convince people that climate change will adversely impact their lives. The report is written as a political document, not an objective summary of the underlying science." Another 2000 advertorial published in
The New York Times and
The Wall Street Journal entitled "Unsettled Science" said "it is impossible for scientists to attribute the recent small surface temperature increase to human activity." ExxonMobil announced in 2008 that it would cut its funding to many of the groups that "divert attention" from the need to find new sources of clean energy, although in 2008 still funded over "two dozen other organisations who question the science of global warming or attack policies to solve the crisis." A survey carried out by the UK
Royal Society found that in 2005 ExxonMobil distributed US$2.9 million to 39 groups that "misrepresented the science of climate change by outright denial of the evidence". that criticizes ExxonMobil for "
underwriting the most sophisticated and most successful disinformation campaign since the tobacco industry" and for "
funnelling about $16 million between 1998 and 2005 to a network of ideological and advocacy organizations that manufacture uncertainty on the issue". In 2006, Exxon said that it was no longer going to fund these groups though that statement has been challenged by Greenpeace. To investigate how widespread such hidden funding was, senators
Barbara Boxer,
Edward Markey and
Sheldon Whitehouse wrote to a number of companies. Koch general counsel refused the request and said it would infringe the company's first amendment rights.
Funding scientists who are climate change deniers The
Greenpeace research project ExxonSecrets, as well as various academics, have linked several scientists who are
climate deniers—
Fred Singer,
Fred Seitz and
Patrick Michaels—to organizations funded by ExxonMobil and
Philip Morris USA for the purpose of promoting global warming denial. These organizations include the
Cato Institute and
the Heritage Foundation. Similarly, groups employing global warming deniers, such as the
George C. Marshall Institute, have been criticized for their ties to fossil fuel companies. On 2 February 2007,
The Guardian stated that Kenneth Green, a visiting scholar with
AEI, had sent letters to scientists in the UK and the U.S., offering US$10,000 plus travel expenses and other incidental payments in return for essays with the purpose of "highlight[ing] the strengths and weaknesses of the IPCC process", specifically regarding the
IPCC Fourth Assessment Report. An analysis conducted by
The Carbon Brief in 2011 found that 9 out of 10 of the most prolific authors who cast doubt on climate change or speak against it had ties to ExxonMobil. Greenpeace have said that
Koch industries invested more than US$50 million in the past 50 years on spreading doubts about climate change. == Lobbying against emissions regulations ==