What Does the New IPCC Report Say About Climate Change? (Part 1)

guest post by Steve Easterbrook

In October, I trawled through the final draft of this report, which was released at that time:

• Intergovernmental Panel on Climate Change (IPCC), Climate Change 2013: The Physical Science Basis.

Here’s what I think are its key messages:

The warming is unequivocal.
Humans caused the majority of it.
The warming is largely irreversible.
Most of the heat is going into the oceans.
Current rates of ocean acidification are unprecedented.
We have to choose which future we want...