Opposition to climate change action comes from a mix of political leaders, fossil fuel companies, conservative think tanks, and industry trade groups. In the United States, about 14% of adults say global warming isn’t happening at all, while 29% attribute it to natural changes rather than human activity, according to Yale’s 2024 climate opinion data. But the more consequential opposition isn’t from individual skeptics. It’s organized, well-funded, and deeply embedded in policy debates.
The Political Opposition
Climate skepticism has become a defining feature of Republican Party politics. At least since the Reagan administration, the party has generally opposed environmental regulation, and outright climate change denial became common among Republican leadership over the following decades. Donald Trump made this opposition explicit, signaling skepticism about climate policy, backing the coal industry, and pulling the U.S. out of the Paris Agreement during his first term.
The 2024 Republican Party platform makes the position official without ever using the phrase “climate change.” It calls for lifting restrictions on oil, natural gas, and coal production, canceling the electric vehicle mandate, terminating what it labels the “Socialist Green New Deal,” and ending what it describes as market-distorting regulations on energy. The platform frames energy deregulation as an economic issue, promising to slash inflation and reduce household costs. This framing matters because it reflects how most political opposition to climate action is packaged today: not as outright denial of science, but as a cost-benefit argument about what society can afford.
Think Tanks Driving the Debate
Behind the political messaging sits a network of conservative think tanks that have spent decades challenging climate science and opposing emissions regulations. The earliest organized effort came from the Global Climate Coalition, a group rooted in corporate America. As that coalition faded, organizations like the Competitive Enterprise Institute (CEI) stepped in, anchoring the Cooler Heads Coalition, a group of think tanks focused specifically on fighting climate policy.
Several think tanks have been especially active. The Heartland Institute, once a small regional organization, became one of the most visible forces in climate skepticism over the past two decades. The Cato Institute has published at least five books challenging mainstream climate science. CEI, the Marshall Institute, the Hoover Institution, and the U.K.’s Institute for Economic Affairs have each published multiple books in the same vein. These organizations don’t just publish research. They shape talking points that filter into media coverage, congressional testimony, and state-level policy debates.
The Fossil Fuel Industry
Major oil and gas companies have a long history of funding efforts to slow climate legislation, even as some publicly acknowledge climate change. A congressional investigation into the industry’s role found detailed strategies by individual companies. BP, for instance, planned to spend between $2.5 and $4.5 million in one state alone on “hard persuasion” tactics like television advertising, plus $2.5 million to build a salmon hatchery to associate the brand with healthy ecosystems. Shell funded the Energy Biosciences Institute at UC Berkeley with $25 million over five years.
Beyond individual companies, industry trade groups carry significant weight. The American Petroleum Institute and the U.S. Chamber of Commerce have historically been strong opponents of carbon emission reductions. At the state level, research on legislative battles found that utilities, power generation companies, fossil fuel and chemical firms, and real estate groups consistently oppose climate policies. Utilities play a particularly central role, not just blocking ambitious clean energy legislation but also reshaping the bills that do survive into versions more favorable to their business interests.
Scientists Who Disagree
A small number of credentialed scientists have publicly challenged parts of the climate consensus, though their views vary widely. Some, like Roger Pielke Sr. of the University of Colorado, didn’t reject the importance of greenhouse gas emissions but argued that other factors like land-use changes and aerosol pollution deserved more attention. His position was more nuanced than a simple “climate change isn’t real” stance, but it placed him outside the mainstream consensus.
John Christy of the University of Alabama, Huntsville, one of the more prominent skeptical scientists, has argued that the disparity between mainstream and dissenting researchers reflects structural problems in academic funding and peer review. “We are being black-listed, as best I can tell, by our colleagues,” he said. Pat Michaels, another well-known skeptic, described difficulty getting papers published that projected warming at the lower end of predictions, claiming editors repeatedly sent manuscripts to new reviewers who raised fresh objections.
A study comparing the two groups found that scientists who accepted the consensus on human-caused warming were significantly more prominent and more frequently cited than those who didn’t. Whether that reflects the strength of the evidence or, as skeptics argue, a self-reinforcing cycle of funding and prestige, depends on whom you ask. What’s clear is that the dissenting scientific voices represent a very small fraction of active climate researchers.
The Core Arguments Against Climate Action
Not everyone who opposes climate action makes the same argument. The positions exist on a spectrum, and understanding which argument someone is actually making reveals a lot about where the real disagreements lie.
- “Climate change isn’t happening.” This is the most extreme position and the easiest to counter. It requires ignoring or selectively dismissing the global body of climate research. Some proponents cherry-pick inconclusive individual studies to cast doubt on the broader pattern.
- “It’s happening, but it’s natural.” This position accepts that temperatures are changing but denies that human activity is the cause. Climate scientists have developed “fingerprinting” methods that distinguish human-driven warming from natural cycles. Some researchers point out that natural cycles should actually be producing cooling right now, not warming.
- “It’s happening, but it’s beneficial.” A smaller group acknowledges human-caused warming but argues the effects are positive: higher crop yields, longer growing seasons, expansion of agriculture into northern latitudes, and the fertilizing effect of higher carbon dioxide levels on plants.
- “It’s happening, but the cost of fixing it is too high.” This is the most politically influential argument. It accepts the science but frames the response as an economic question. Proponents argue that cutting emissions on the scale scientists recommend would cause more economic damage than the climate change itself. This reasoning underpins most of the policy opposition in Congress and state legislatures today.
The shift over time has been notable. Outright denial that the climate is changing has become harder to sustain as evidence accumulates. The center of gravity among opponents has moved toward the economic argument, where the debate is less about thermometers and ice cores and more about jobs, energy prices, and international competitiveness. That shift makes the opposition harder to counter with science alone, because it reframes the question from “is this real?” to “can we afford to do anything about it?”