Story highlights Americans overwhelmingly agree with the scientists, according to public opinion polls

What they don't agree on, at all, is how big a deal it is

Washington (CNN) Scientists overwhelmingly agree that the climate is changing and getting warmer, and that humans are contributing.

Americans overwhelmingly agree with the scientists, according to public opinion polls.

Seventy percent say climate change is happening, according to a study from researchers on climate communications at Yale and George Mason universities in January, and 55% said it is mostly caused by humans.

They have also supported US adherence to the Paris Accord -- 70% -- the enormous, nearly worldwide international agreement that countries must act to keep global temperatures at bay.

President Donald Trump is said to be on the verge of pulling out of that agreement.

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