Propaganda can kill the weak minded among us. Especially young impressionable people. The climate has not warmed perceptibly in any of these useful idiot's lifetimes yet they seem to be willing to harm themselves over it. In reality it was warmer in the 1930s in Europe and here than it is now.
https://stevengoddard.wordpress.com/2013/01/15/1930s-was-by-far-the-hottest-decade-in-the-us/