• President Obama goes to Canada. Grist, the Thin Green Line and Green Inc weigh in on the trip and the President's stance on the tar sands. Switchboard bloggers write about it here.
• The Arctic is burping nitrous oxide, a powerful greenhouse gas.
• Alaska is a frontier for wind power.
• Five writers explain why they think green is dead.
• On Gas 2.0, San Francisco's mayor announces the installation of electric vehicle recharging stations in front of City Hall.
• The UN calls for a global green New Deal.
• Joe Romm writes about the climate friendly diet (eat less meat).
• Coming soon to New York: the Waterpod Project, a floating island that will showcase artists; it's made of recycled materials and designed for rising tides.
• Salon explains why environmentalists are thrilled about the stimulus plan.
• Obama's EPA takes first step in regulating carbon dioxide emissions from coal-fired power plants. 
• California quadrupled the amount of renewable energy it installed in 2008 over the previous year.

Think I missed anything really great? Feel free to share it in the Comments section.