People still think climate change is a hoax?

Alright, the world has existed for millions of years and humans have lived on it for millennia also. But the drastic changes happening in the natural world around us is alarming.

How do these deniers not see it?

What d'yall think? Is the whole climate change debate a bogeyman unleashed for I don't know what reasons.

Or is it something real that we all are responsible for?