Daily Roundup: April 29, 2009

The Hundred: Everyone’s talking about Obama’s first 100 days. What did they do for the environment? Huffington Post

Truly Green: Algae is poised to become a major fuel source in the future – if federal law allows for it. Scientific American

Breathe Easy? The best and worst U.S. cities for air pollution have been ranked. Topping the “worst” list are several Southern California cities, while the best include Billings, Montana; Cheyenne, Wyoming; Honolulu, Hawaii; and Santa Fe, New Mexico. MSNBC

Curious Critters: Strange finds are afoot in the animal world: An all-female ant species is discovered, and so is the fact that all octopi are venomous. National Geographic

Aussies Unite: Russell Crowe is working to save the part of the Steve Irwin Wildlife Reserve (named for the late croc hunter) from being sold to a strip-mining aluminum company. Ecorazzi

--Avital Binshtock