#1: The Post-Oil Era Begins
Electricity may be what fuels our future—electricity from renewables, nuclear, and even from burning biomass.
#4: Slime Is Turning the Seas Into Dead Zones
Pollution, overfishing, and the rise of microbes spell doom for many bodies of water.
#5: Nations Stake Their Claims to a Melting Arctic
Undiscovered oil and gas reserves below the ice set off a polar gold rush.
#20: The “Doomsday Vault” Stores Seeds for a Global Agriculture Reboot
Humanity's chances to survive global warming and nuclear attacks just increased.
#25: EPA Searches Soul, Tries to Figure out If It's a Climate Cop
The agency moves toward acting on greenhouse gases, but change will probably wait for Obama.
#31: Fish Farming Threatens Wild Salmon
Lice, interbreeding, and contaminants are killing off the species.
#35: Scientists Find the Key to Bringing Dead Zones Back to Life
Phosphorus levels can make or break a lake, it turns out.
#37: Shorebird Population Is in Rapid Decline
Australian and Asian birds are a clear example of population collapse.
#44: The Baffling Bee Die-Off Continues
Colony Collapse Disorder continues its relentless march.
#45: Huge Population of Lowland Gorillas Found
For once, researchers come up with good news for an endangered species.
#49: Plant Migration Tied to Climate Change
When the going gets hot, vegetation runs for the hills.
#55: Polar Bears (Finally) Make the Endangered Species List
At long last, the government acknowledges the species is threatened.
#73: Giant Ice Meteors Fall From Clear Skies
20-pound chunks of ice falling on a sunny day? It's no urban myth.
#93: Physicists Discover the Source of Earth’s "Mystery Hiss"
A strange electromagnetic wave follows the path of sound waves through water.