Earth
Sign up for our newsletter
We summarize the week's scientific breakthroughs every Thursday.
- 			 Animals AnimalsClimate change discourages second familiesBirds out of sync with local baby food supply of caterpillars aren’t nesting a second time. By Susan Milius
- 			 Tech TechCatalyst knocks out a smog makerUnique system could help truckers meet new emissions standards. By Janet Raloff
- 			 Agriculture AgricultureWhere do you eat?Here's proof that we spend too much time mindlessly consuming food. By Janet Raloff
- 			 Climate ClimateHot carbon storageNew field studies show Africa’s tropical forests have stored carbon in recent decades. By Sid Perkins
- 			 Astronomy AstronomyA green visitor makes its approachComet Lulin, which passes closest to Earth on February 24, may be a sight for sore eyes. By Ron Cowen
- 			 Agriculture AgriculturePredators zoom in on lice-infested salmonNew research reveals another impact of fish farming on wild stocks. 
- 			 Humans HumansAAAS: Climate-friendly fishMany intangibles determine how big — or small — the carbon footprint is of that fish you're thinking about eating. By Janet Raloff
- 			 Health & Medicine Health & MedicineMRSA has its day in the sunBeachgoers may be exposed to antibiotic-resistant microbe strain in sea and sand, but there appears to be no link to infection. 
- 			 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. 
- 			 Planetary Science Planetary ScienceEarth may be home to unearthly lifeNo need to look on other planets for new forms of life — weird life could exist right here on Earth. 
- 			 Humans HumansAAAS: March of the Hungry PenguinsPatagonian penguins have become sentinels of climate change and human impacts on the marine world. By Janet Raloff