WASHINGTON — An overwhelming majority of the American public, including half of Republicans, support government action to curb global warming, according to a poll conducted by The New York Times, Stanford University and the nonpartisan environmental research group Resources for the Future.

In a finding that could have implications for the 2016 presidential campaign, the poll also found that two-thirds of Americans said they were more likely to vote for political candidates who campaign on fighting climate change. They were less likely to vote for candidates who questioned or denied the science that determined that humans caused global warming.

Among Republicans, 48 percent say they are more likely to vote for a candidate who supports fighting climate change, a result that Jon A. Krosnick, a professor of political science at Stanford University and an author of the survey, called “the most powerful finding” in the poll. Many Republican candidates question the science of climate change or do not publicly address the issue.

Nonetheless, 47 percent of Republicans still said they believed that policies designed to curb global warming would hurt the economy.