Climate
- 			 Earth EarthAAAS: Climate-friendly dining … meatsThe carbon footprints of raising livestock for food. By Janet Raloff
- 			 Climate ClimateThe hidden costs of better fuelsWhether crop-based biofuels will reduce greenhouse gas emissions depends on how, and where, they're grown. 
- 			 Humans HumansAAAS: March of the Hungry PenguinsPatagonian penguins have become sentinels of climate change and human impacts on the marine world. By Janet Raloff
- 			 Earth EarthFirst waveThe presidents of two island nations draft escape plans, anticipating sea level rise. 
- 			 Climate ClimatePlumes of arctic haze traced to Russia, KazakhstanSmoke from forest fires, agricultural burning may be substantial part of springtime plumes. By Sid Perkins
- 			 Climate ClimateWinter birds shift northMore than 170 common North American species are wintering farther north than they did in the past. By Susan Milius
- 			 Earth EarthCalifornia may yet get the first greenhouse gas limits for carsPresident Obama decides to revisit a controversial decision made less than a year ago by his predecessor. By Janet Raloff
- 			 Tech TechStimulus bill doesn’t ignore R&DFeatured blog: Here's where the economic-stimulus bill would attempt to revamp and reinvigorate federally financed research. By Janet Raloff
- 			 Earth EarthSteven Chu’s Senate Confirmation Looks CertainSenate energy committee appreciates Obama's pick for Secretary of Energy. By Janet Raloff
- 			 Earth EarthWarmer oceans would fuel more thunderstormsSatellite data reveal more thunderheads forming as tropical sea-surface temperatures rise. By Sid Perkins
- 			 Earth EarthObama administration should lead energy transitionR.K. Pachauri, an engineer and economist by training, is director-general of The Energy and Resources Institute in New Delhi, India, and a corecipient of the 2007 Nobel Peace Prize for his role as chief of the Intergovernmental Panel on Climate Change. The IPCC periodically issues consensus reports on the science of climate change. Senior editor Janet Raloff spoke with him about changes he hopes to see from the Obama administration. 
- 			 Climate ClimateHoldren to Head White House ScienceIt appears that another physicist with Nobel ties is set to become the primary Obama adviser on science. By Janet Raloff