Does Global Warming exist?

If so, how has it been measured, observed, and proven?

>>6
FUN FACT DDT WASN'T BANNED FOR IT CAUSING CANCER DUMBFUCK!
FUN FACT TAKE A NICE LOOK AT THE GLACIERS AND TELL ME ITS 1%!!!
FUN FACT 1980s COMPUTERS SUCKED ASS
FUN FACT YOUR A FUCKING DUMBASS