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We summarize the week's scientific breakthroughs every Thursday.
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		ClimateObama’s budget would boost science
Featured blog: Here's a preview of what science programs the Obama administration plans to push in the coming year's federal budget.
By Janet Raloff - 			
			
		AnimalsClimate change discourages second families
Birds out of sync with local baby food supply of caterpillars aren’t nesting a second time.
By Susan Milius - 			
			
		TechCatalyst knocks out a smog maker
Unique system could help truckers meet new emissions standards.
By Janet Raloff - 			
			
		AgricultureWhere do you eat?
Here's proof that we spend too much time mindlessly consuming food.
By Janet Raloff - 			
			
		ClimateHot carbon storage
New field studies show Africa’s tropical forests have stored carbon in recent decades.
By Sid Perkins - 			
			
		AstronomyA green visitor makes its approach
Comet Lulin, which passes closest to Earth on February 24, may be a sight for sore eyes.
By Ron Cowen - 			
			
		AgriculturePredators zoom in on lice-infested salmon
New research reveals another impact of fish farming on wild stocks.
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		HumansAAAS: Climate-friendly fish
Many intangibles determine how big — or small — the carbon footprint is of that fish you're thinking about eating.
By Janet Raloff - 			
			
		Health & MedicineMRSA has its day in the sun
Beachgoers may be exposed to antibiotic-resistant microbe strain in sea and sand, but there appears to be no link to infection.
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		EarthAAAS: Climate-friendly dining … meats
The carbon footprints of raising livestock for food.
By Janet Raloff - 			
			
		ClimateThe hidden costs of better fuels
Whether crop-based biofuels will reduce greenhouse gas emissions depends on how, and where, they're grown.
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		Planetary ScienceEarth may be home to unearthly life
No need to look on other planets for new forms of life — weird life could exist right here on Earth.