The Atlantic - Clare Foran
The science of man-made global warming has only grown more conclusive. So why have Republicans become less convinced it's real over the past decade and a half?
|
Lucas Jackson / Reuters |
Denial of the broad
scientific consensus
that human activity is the primary cause of global warming could become
a guiding principle of Donald Trump's presidential administration.
Though it's difficult to
pin down exactly what Trump thinks about climate change, he has a well-established track record of skepticism and denial. He has
called global warming a "hoax,"
insisted while campaigning for the Republican nomination that he's "not a big believer in man-made climate change," and recently
suggested
that "nobody really knows" if climate change exists.
Trump also plans
to nominate Republicans to lead the Environmental Protection Agency and
the Energy Department who have expressed skepticism toward the
scientific agreement on human-caused global warming.
Indeed, Trump's election is a triumph of climate denial,
and will elevate him to the top of a Republican Party where prominent
elected officials have
publicly rejected the climate consensus. It's not that the presidential election was a referendum on global warming. Climate change
barely came up during the presidential debates, and voters
rated
the environment as a far less pressing concern than issues like the
economy, terrorism, and health care.
But that relative lack of concern
signals that voters have not prioritized action on climate change, if
they want any action taken at all. Trump's victory sends a message that
failing to embrace climate science still isn't disqualifying for a
presidential candidate, even as scientists
warn that the devastating consequences of global warming are under way and expected to intensify in the years ahead.
If
Trump fails to take climate change seriously, the federal government
may do little to address the threat of a warming planet in the next four
years.
A presidential administration hostile to climate science also
threatens to deepen, or at the very least prolong, the skepticism that
already exists in American political life. "If the Trump administration
continues to push the false claim that global warming is a hoax, not
happening, not human caused, or not a serious problem, I'd expect many
conservative Republican voters to follow their lead," said Anthony
Leiserowitz, the director of Yale University's Program on Climate Change
Communication.
A
presidential administration hostile to climate science also threatens to
deepen the skepticism that already exists in American political life.
The
entrenchment of climate-science denial is one of the ways the United
States appears to be exceptional relative to the rest of the world. A
comparative 2015 study
of nine conservative political parties in countries such as Canada,
Germany, and Spain concluded that "the U.S. Republican Party is an
anomaly in denying anthropogenic climate change." Meanwhile, Americans
were least likely to agree that climate change is largely the result of
human activity in a
2014 survey of 20 countries, including China, India, Australia, and Great Britain.
Scientific
reality does not seem to have escaped the distorting influence of
political polarization in the United States. A paper
published in Environment earlier
this year suggests that as the Tea Party pushed the Republican Party
further to the political right, it helped solidify skepticism of
man-made climate change within the GOP. That happened as the Tea Party
incorporated "anti-environmentalism and climate-change denial into its
agenda," the authors write, and subsequently became part of a broader
"denial countermovement" made up of fossil-fuel companies as well as
conservative think tanks and media outlets.
As the ideological divide between Republicans and Democrats
has widened,
so has the partisan divide over climate change. Scientific evidence
that human activity is the leading cause of global warming has continued
to accumulate in recent years, and the evidence for man-made climate
change is now overwhelming. In spite of that, Republicans are slightly
less convinced
than they were a decade and a half ago that the Earth is getting warmer
as a result of human activity.
Democrats have moved in the opposite
direction and become more likely to say that man-made climate change is
real. This year, Gallup
found
that while 85 percent of Democrats believe human activity has lead to
higher temperatures, only 38 percent of Republicans agree.In a
deeply divided country, adopting views on climate change that conflict
with scientific evidence can actually be a rational choice.
Liberals and
conservatives frequently
spend time
with like-minded individuals, and people across the political spectrum
may have a better chance of fitting in if they embrace shared partisan
beliefs—regardless of whether those beliefs contradict scientific fact.
This helps explain why highly educated Republicans are actually
more likely to reject climate science. Yale University professor Dan Kahan put it this way in a 2012
Nature article:
For members of the public, being right or wrong about climate-change
science will have no impact. Nothing they do as individual consumers or
individual voters will meaningfully affect the risks posed by climate
change. Yet the impact of taking a position that conflicts with their
cultural group could be disastrous. … Positions on climate change have
come to signify the kind of person one is. People whose beliefs are at
odds with those of the people with whom they share their basic cultural
commitments risk being labelled as weird and obnoxious in the eyes of
those on whom they depend for social and financial support.
The complexity of climate science may have made it
easier for global warming to get caught up in partisan politics as well.
Voters look to the positions adopted by their political party as a kind
of mental shortcut when deciding what to make of complicated subjects
such as climate change, according to
research
from Cynthia Rugeley of the University of Minnesota, Duluth, and John
David Gerlach of Western Carolina University.
That means that if Trump
continues to voice climate skepticism after taking office, he could
further cement skepticism among conservative voters. "I think it will
reinforce climate denial among those who already doubt its existence. To
that extent, yes, it will deepen denial," Rugeley said in an interview.
The
power and influence of corporations relative to the government might
also help explain why skepticism has thrived. An ideological preference
for free markets may make some politicians and voters in the United
States more sympathetic to arguments that environmental regulations will
hurt the private sector—even if those arguments are used to dismiss
climate science.
According to Matthew Paterson, a professor of
international politics at the University of Manchester in England,
skepticism over government intervention might help explain why climate
skepticism also
seems
relatively entrenched in Anglo-Saxon countries such as Great Britain
and Australia, though to lesser degrees there than in the United States.
Fossil-fuel interests, in particular, have managed to inject doubt into
the climate debate in the United States, Paterson argues, by "funding
deniers, and anti-climate politicians, and giving them a public voice."The
more voters are skeptical of man-made climate change, the easier it may
be for politicians to justify inaction.
It's impossible to predict what
Trump will do in office, but he already
appears
poised to dismantle President Obama's agenda to combat climate change.
He also seems willing to fill his administration with individuals who
have cast doubt on the scientific consensus. Trump wants Scott Pruitt,
the Oklahoma attorney general, to serve as administrator of the
Environmental Protection Agency. Pruitt recently co-
wrote
an article claiming that scientists "disagree about the degree and
extent of global warming and its connection to the actions of mankind."
Trump's choice to run the Energy Department, former Texas Governor Rick
Perry, has
claimed
"the science is not settled" on climate change. And his pick to lead
the Interior Department is Republican Representative Ryan Zinke of
Montana, who has
reportedly said that global warming is "not a hoax, but it's not proven science either."
Despite significant pockets of skepticism and denial, particularly
among conservative Republicans, there are plenty of Americans across the political spectrum who believe that man-made climate change exists. Gallup
recently found that
a majority of Americans believe human activity is causing global
warming, and feel worried about the rise in temperatures. Concern over
climate change increased among Democrats and Republicans from 2015 to
2016 with 40 percent of Republicans and 84 percent of Democrats
reporting concern this year. If that concern continues to increase,
skepticism may decline over time among American voters.
Whether
skepticism dissipates or intensifies may depend in part on the actions
of the Trump administration over the next four years. If Trump makes
climate science and policy a high-profile target, he might provoke a
backlash among moderate Republicans who do believe global warming is a
serious problem. But skepticism within the GOP could intensify if
Trump's administration publicly misrepresents climate science and
dismisses efforts to combat global warming as an expensive waste of
time. If that happens, Democrats and liberal activists will
counterattack, a dynamic that might cause partisan attitudes to harden
further. That could leave the political debate over global warming more
fractured than ever.
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