Evidence for global warming

What The Science Says:
There are many lines of independent empirical evidence for global warming, from accelerated ice loss from the Arctic to Antarctica to the poleward migration of plant and animal species across the globe.

Climate Myth: It's not happening
"...these global warming studies that now we're seeing (are) a bunch of snake oil science." (Sarah Palin)

The evidence for global warming is being meticulously accumulated by scientists all over the world. This evidence includes the following independent observations that paint a consistent picture of global warming:

Ice Melt

Biological changes

Intermediate rebuttal written by John Cook

Update July 2015:

Here is a related lecture-video from Denial101x - Making Sense of Climate Science Denial


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