Does the temp change over time... yes. Is the climate changing? All the time. Can we do anything to keep it from changing? Yes, we can all become children-less, atheist, vegan, communists and after the mass starvation kicks in and wipes out billions of people the well tended lands will turn back into deserts and overgrown forests will burn in record numbers (looking at you California), but thank God the grasshoppers are safe, I was really worried they might not flourish. But seriously, change is constant, and when you see suppression of rights "for the sake of the environment" you can tell a movement is inspired by agencies who want to control, rule, and enslave you. The green new deal is just an excuse to tax Americans into socialism light.