The Sierra Club is sounding more and more extremist. And just where are these bill boards (I've yet to see one in Calgary, as the article mentions)?
From Article -- "The notion that the sun causes climate change “has been totally debunked,” he says."
Has this been debunked? Because I'm sure the sun still has some influence on climate here on Earth, No?
http://fullcomment.nationalpost.com/...against-truth/