• Blogger Nate Silver offers financial challenge to climate skeptics.
• The Green 500 list ranks supercomputers, placing electrical efficiency as the most important feature; IBM grabs 18 of the 19 top spots.
• Study shows that PBDE's enter humans through diets, not just household products.
• Beekeeping in New York City is on the rise, despite being illegal.
• Smart tag experiment tracks where trash ends up.
• Federal appeals board to allow oil and gas drilling near prehistoric ruins in southern Utah.
• Researchers link air pollution exposure before birth with lower IQ scores in childhood.
• Grist is tracking how Senators will vote on the energy and climate bill.
• Brooklyn dumpster swimming pools may head to dried-up suburban strip mall parking lots.
• Sacramento neighbors participate in a crop swap, sharing fruits and vegetables from their backyard gardens.
• Nielson reports that bottled water sales fell 3.3% in the U.S. last year.
• North Carolina lawmakers considering bill to ban wind turbines from scenic ridgelines.
• Offshore drilling is part of California budget deal.
• Toyota promotes the 2010 Prius with giant solar-powered flowers that serve as WiFi spots and power outlets.
• Federal wildlife officials will study the elusive white-sided jackrabbit to see if it needs Endangered Species Act protection.
• Giant blobs of oil wash up on the beaches of South Padre Island in Texas.

Think I missed anything really great? Feel free to share it in the comments section. Want news updates every day? Check out my colleague Ben Jervey's blog on Greenlight.