Global CO2 Concentration Reaches 400 Parts Per Million
Want to Save the Environment? Build More Cities
A new book argues for the environmental advantages of urban density
Tiny Online Publication Wins Pulitzer Prize
Bucking a trend, an environmental news site wins journalism's highest honor
European Parliament Vote Leaves Carbon Trading System in Shambles
It is another indicator of a dramatic shift in current balance of action on climate
Margaret Thatcher (1925-2013): Chemistry Major, UK Prime Minister, Climate Hawk
The late UK leader called for "sacrifices, so that we do not live at the expense of future generations"
"The Most Hated Climate Scientist in the U.S."
Yale University profiles one of its more notorious physics PhDs
A Clever But Questionable Approach to Geoengineering
MIT's David Keith says it could be cheaper and easier to stop global warming than you think
Geographers Compute Arctic Shipping Routes
Some ships could cut across the pole by midcentury
Carbon Dioxide and Temperature Levels Are More Tightly Linked
But will the new research convert any climate skeptics?
The Best—And Craziest—Ideas at the ARPA-E Future Energy Pitching Session
Early-stage energy startups faced down a panel of investors; could these ideas really work?
U.S. Northeast Sets Ambitious Carbon Reduction Goals
New targets reflects RGGI's own success and general U.S. progress
U.S. Greenhouse Gas Emissions at Eighteen-Year Low
They are nearing their 1990 level, the baseline for Kyoto Protocol reductions
Plugging In to Plant Roots
Marsh grasses can power small fuel cells
Laser Eyes Spy a Big Melt in the Arctic
Airborne altimeters yield a disturbing picture of polar ice loss
2012 Was 10th Warmest Year Ever, Behind the Rest of the 21st Century
Only 1998 was warmer among 20th century years; monthly temperature records are being routinely shattered
The Great Canal of China
Bringing Water to the Thirsty North
Exabyte Problem: Climate Scientists Grapple With a Deluge of Data
As improved sensors generate massive amounts of information, scientists must figure out how to analyze it.
Anti-Fossil Divestment Campaign Gets Traction
Goal may be misguided, but political effect could be benign
Black Swan Cyclones Could Be Much Worse Than Sandy
Storms that can't be predicted based on historical data are still a possibility, and would pack a devastating punch
The Buzz This Week about Rising Sea Levels
A reading guide for the perplexed