I picked up this little primer on climate policy at the library and it offers a very lucid, and surprisingly substantial given its length, introduction to the various tools for responding to climate change (carbon tax, cap-and-trade, renewable energy investment, etc.), their pros and cons, and which players support or oppose which policies. He convinced me that a cap-and-trade system (with auctions) is probably preferable to a straight-up carbon tax, and much more politically feasible.

You can read an excerpt here.

More recently, the author, Peter Barnes, has also written an interesting-sounding book called Capitalism 3.0.