Susan Casey Lefkowitz warns that tar sands extraction is unlikely to ever be environmentally sustainable in a Bloomberg article and encourages President Obama to steer clear of supporting tar sands on his trip to Canada... Meanwhile, Patrice Simms calls for a move away from dirty 19th century coal power in the New York Times... Wesley Warren praises stimulus package funding for clean energy and green jobs in a Politico article... In TIME Jen Henry, real estate sector manager for NRDC's Center for Market Innovation, emphasizes that an influx of funding for weatherizing low income homes will make a "tangible difference" for communities... In the Associated Press Susan Egan Keane celebrates a move by the Obama administration toward an international treaty on mercury reduction... And MSNBC.com reports the Obama administration has agreed to review whether to regulate carbon dioxide emissions from coal-fired power plants in response to a petition from environmental groups including NRDC...