Uh, yes really. The claims they have made have been proven wrong on almost every occasion. I can flip a coin and be more accurate than they have by at least an order of magnitude. That's absurd. But, look at those who support the crap.
Uh, no, not really, they've gotten it mostly right. Temperatures have gone up.
Coral Reefs are dying.
The Effects of Climate Change on Coral Reef Health - Expeditions - Scientific American Blog Network
Permafrost is melting.
Canada Struggles with Melting Permafrost as Climate Warms - Scientific American
Ice Caps are shrinking
An Arctic ice cap s shockingly rapid slide into the sea - The Washington Post
Droughts are happening.
Global Warming Brought on California s Severe Drought