No Joke! Possible April Fools' Winter Storm - weather.com

How much? As it stands now, a potential 6-to-12 inch snowstorm in highly populated Northeast cities. This is HIGHLY dependent upon the extent of the storm's explosive coastal development and track of storm.

Study: Climate-driven vegetation change by boreal forests is yet another positive, amplifying feedback « Climate Progress

Going back to the 2005 Science study, the point is that if you convert a white landscape to a boreal forest, the surface suddenly starts collecting a lot more solar energy.

Remember that time 20,000 years ago, when we lost that nice mile-thick ice at Chicago, and positive feedbacks resulted in the Earth becoming inhabitable?  Neither do I

When the glacier reached its southernmost limit about 20,000 years ago, the ice was a mile thick at Chicago--an enormous weight that depressed the land beneath.