Most Americans say climate changing, humans to blame

USA Today: If you've heard the presidential candidates talk about climate change, you'd probably guess it's one of America's most divisive issues. Hillary Clinton and Bernie Sanders have described global warming as one of the greatest threats facing the United States, while Donald Trump has said he's "not a big believer." Ted Cruz has described climate change as a "pseudoscientific theory" designed by liberals to give government more power.

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