Here are two articles, one that shows that while there's a big split between Democrats and Republicans, a majority of Americans now accept (note, I'm not using the word, believe, a word associated with faith, not knowledge) climate change is happening. The second article explores why the US has more climate deniers than our peers in the world. There are a number of contributing factors and certainly it's been politicized, but our two party system amplifies the divide, leaving us with binary thinking to retain our political worldview.
Growing majority believes global warming is happening - Axios
Why people around the world fear climate change more than Americans do - Salon