We're sending millions of dollars down sewers and drains
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Thorium reactors are easily within humanity's reach
Stunning photos show the impact of a warming planet
Forests contain 10 times more salamanders than we thought
A new book chronicles Earth's coldest and most fragile seascapes
Why the ancient Maya took their sacrificial rites underground
How does our planet's core actually work? We're only now learning
Award-winning photographs reveal what light pollution hides
Could lead poisoning have contributed to the empire's demise?
A much-hyped new study about civilizational collapse has serious flaws
Scaling up waste-to-energy technology could transform hog farming
Investigating the cause of a Triassic extinction across North America
Thanks in part to fracking, America produces more fuel than Russia
A potentially valuable resource for water-strapped nations
Hurricane Sandy was New York's "self-inflicted calamity"
Focusing on smog may distract from the real problem: carbon emissions
The hole that appears above Antarctica every year was smaller in 2013
Finding beauty in the aftermath of the Colorado deluge
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Watch California's Rim Fire from the cockpit of a firefighting plane
Human-caused climate change can exacerbate storms and heat waves
Citizen scientists scour old ships' logs to collect climate data
The skies are a thriving ecosystem full of birds, bugs and bacteria
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In China, air pollution takes an average 5 years off of life
In Tanzania, an innovative kind of fence is keeping the peace
UN report states with more certainty that humans are behind warming
Tracking nitrogen's movements to limit pollution from agriculture
Experience research on the frozen continent like never before
Lake Erie's record-breaking algal bloom may become the norm
What we can learn from Hurricane Sandy
Sustainable energy should rely on the classical elements: earth, wind and water
Little is known about the bacterial ecosystem in our own homes
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