Today in Science

Environment

Humans are causing the sixth mass extinction in Earth's history, first since the dinosaurs (that makes us the same level of disaster as volcanic eruptions and asteroid strikes). Reuters, BBC, CNN, USAT, LiveScience.com

Cleaner air leads to lower death rate. NYT

Overuse of water in farming seen as major threat to freshwater. Reuters

Bird Flu

Bird flu virus has evolved into two distinct strains. BBC

Science

Gene may increase impulsiveness, violent behavior. LiveScience.com, ScienceNOW

Inbreeding amongst Bedouins has resulted in rare genetic disease. NYT

HIV/AIDS

AIDS activist missing in China. Reuters

Climate Change

Climate changed linked to increase in malaria in Africa. BBC

NASA is measuring Arctic snow levels. Reuters