Yes, I agree that Americans overwhelmingly believe that global warming is happening. However that has nothing to do with my post, please reread it.
My quote, and graphs state that the concern to take action on climate change rates dead last. In other words, while nearly all Americans believe that global warming is really happening, they do not consider it a big deal.
As far as my belief in the existence of God, like all Christians that is for the most part based in faith. But I think biblical faith is a bit different than the English word for "faith," and not all translations are alike and in some use the word "faith" and others "trust." Certainly it isn't just blind faith.
Let me try an explanation. Say I was trapped on a ledge on the side of a cliff, and had a friend above who dropped me a rope to pull me up. I would have every faith/trust that my friend would pull me up. Or lets say one needs a risky surgery. You have lots of resources to research doctors, hospitals, etc so you can assemble the best team possible. A group of professionals you think will give you the best chance of survival. By letting yourself be put under the knife, you are showing your faith/trust in this team. Faith in God isn't blind faith, as you seem to infer.
With climate change it is similar: I put my faith/trust in the empirical data, real observations. I don't have proof what all the temperatures are at hundreds of testing points around the world. I take the word faith/trust of the science stations who monitor them. Faith is personal between God and myself. Climate non-personal between science and me.