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5 Things to Know from AP-NORC environment poll

FILE - In this Dec. 1, 2014 file photo, people arrive to the Climate Change Conference in Lima, Peru. Most Americans believe that the U.S. should take a leadership role in the global fight against climate change. Three-quarters of Democrats and nearly half of Republicans say the U.S. should lead on global warming, even if other countries don’t take action. Those in support of a treaty are split on whether the U.S. should forge ahead with or without approval by the Senate. (AP Photo/Rodrigo Abd, File)
FILE - In this Dec. 1, 2014 file photo, people arrive to the Climate Change Conference in Lima, Peru. Most Americans believe that the U.S. should take a leadership role in the global fight against climate change. Three-quarters of Democrats and nearly half of Republicans say the U.S. should lead on global warming, even if other countries don’t take action. Those in support of a treaty are split on whether the U.S. should forge ahead with or without approval by the Senate. (AP Photo/Rodrigo Abd, File) FILE - In this Dec. 1, 2014 file photo, people arrive to the Climate Change Conference in Lima, Peru. Most Americans believe that the U.S. should take a leadership role in the global fight against climate change. Three-quarters of Democrats and nearly half of Republicans say the U.S. should lead on global warming, even if other countries don’t take action. Those in support of a treaty are split on whether the U.S. should forge ahead with or without approval by the Senate. (AP Photo/Rodrigo Abd, File)

WASHINGTON (AP) – The Associated Press-NORC Center for Public Affairs Research and Yale University surveyed 1,578 Americans on a wide range of environmental and energy matters, including global warming. Here are some key findings by category:

INTERNATIONAL CLIMATE NEGOTIATONS

Most Americans believe that the U.S. should take a leadership role in the global fight against climate change. Three-quarters of Democrats and nearly half of Republicans say the U.S. should lead on global warming, even if other countries don’t take action. Those in support of a treaty are split on whether the Obama administration should forge ahead with or without approval by the Senate.

REGULATING CARBON DIOXIDE

Sixty percent of Americans, including nearly three-quarters of Democrats and half of Republicans surveyed, say they favor government regulation of carbon dioxide, the chief greenhouse gas. They did not weigh in on how they should be regulated. President Barack Obama has proposed regulations to limit carbon dioxide for the first time from coal-fired power plants, and has already controlled their emissions from vehicles.