Petition to the Heartland Institution for a retraction: Climate change is real.

http://www.thepetitionsite.com/takeaction/283/677/411/?z00m=20353691

The Heartland Institution put up billboards stating that Climate Change in so many words was/is not real.
This is an insult to scientist and basically all intelligent people.  This is a petition asking for a public retraction.
Please sign this petition so many people have been working too hard to just take this slap in the face laying down.