Why do people still deny global warming caused by humans?

When the world is doomed, what do you do? You'd try to alert people so they could take action to prevent the death of the world from happening, right? And how would you do it? With news stories? Scientific data? Good luck. Most people would rather turn a blind eye to any environmental issues and just watch Walking Dead reruns to get their minds off it. People would rather resign themselves to a boring future where they never do anything of value for one reason: Because it's easier. The future where we've solved world hunger, ended prejudice, and achieved world peace is hard. Achievable, but hard. And the future where everyone is a lazy glutton that does nothing but eat pizza and watch TV all day is easy