Friedman: With Keystone Fix In, Greens Must Demand Carbon Tax (NYT)

One Who Would Know Says Republican Principles Require a (Revenue-Neutral) Carbon Tax (NYT Caucus Blog Interview w/ George Shultz)

Australian Industry Group Urges Carbon Trading Instead of Carbon Tax (UPI)

Envt’l, Clean Energy Groups Urge British Columbia to Raise, Expand Carbon Tax (The Province)

Global Temperatures Highest in 4,000 Years (NYT)

2012 Saw Second-Largest Ever Rise in Atmospheric CO2 (HuffPo Green)

China Backing Away From Carbon Tax Start in 2013, Official Says (Bloomberg)

In Defense of Dr. Hansen & Other Climate Hawks (Bill McKibben, Grist)

Climate Damage in 2012 Amounts to 2.7% Sales Tax (NRDC)

Nocera Slams Hansen But Backs Rising Carbon Tax (NYT)