I just came upon a blog written by long-time climate experts Mark Trexler and Laura Kosloff that I really like: The Climatographer. I'm not sure why I haven't bumped into it earlier. With their many years of experience and knowledge, they bring what I think is a very realistic view of the magnitude of the climate problem.
The EnergyCollective recently published a post (Why Should the Obama Administration Approve the Keystone XL Pipeline?) by John Miller. His post, as the title indicates, analyzes various aspects of the KXL pipeline in depth and comes to the conclusion that the benefits are greater than the costs.