
Some Cleaner Burning Cookstoves Aren't Clean Enough
A new study shows no decline in childhood pneumonia from at least some cleaner-burning cookstoves

Some Cleaner Burning Cookstoves Aren't Clean Enough
A new study shows no decline in childhood pneumonia from at least some cleaner-burning cookstoves

Early Drafts of Next Climate Report Leaked Online
Climate deniers used the leak to press their case but the new IPCC report closes the case on a human cause for global warming

Can Energy Efficiency Prove the Next Gold Rush for Fort Collins?
Founded during the Gold Rush in the 19th century, Colorado town has found a way to cut energy use without sacrificing activity or comfort

Solution to Renewable Energy's Intermittency Problem: More Renewable Energy
A mix of offshore and onshore wind, along with contributions from solar power, could provide reliable and cost-effective power flow during all but a handful of days in a hypothetical four-year period under study

Superstorm Sandy Settles Long-Standing Argument over the Value of Dunes
Homeowners without robust sand dunes suffered the worst effects of Hurricane Sandy

Climate Conference Renews Kyoto Protocol but Looks to Successor Treaty
Only two things are clear after the climate meeting in Doha, Qatar: a weak Kyoto Protocol will remain in place for a few more years and more negotiations are needed

Budget Woes May Restrict Scientific Discovery
Travel funding for government scientists has begun to disappear

Can Carbon Trading Save Asia's Remaining Forests?
A program to reduce deforestation relies on funding from markets to reduce greenhouse gas pollution

Can the U.S. Build a Better Battery Maker?
As A123 heads to bankruptcy auction, the Department of Energy touts its new battery research center

Experts Warn of Lost Chances to Storm-Proof NYC after Hurricane Sandy
Some experts worry that the havoc wreaked by Superstorm Sandy may fade into memory

Global CO2 Emissions from Fossil-Fuel Burning Rise into High-Risk Zone
Record emissions of carbon dioxide mean atmospheric concentrations have reached levels that lead to the highest temperature increases

Polar Melting Is Accelerating, So Is Sea-Level Rise
A report by 47 scientists using data from 10 satellites provides exquisitely detailed measurements of Greenland and Antarctica

U.S. Price Tag for Allergies Will Rise Because of Climate Change
Longer pollen season and wider ragweed exposure will affect more people

Poorer Nations Demand More Aid to Deal with Climate Change
Negotiations at climate talks indicate $100 billion a year is not nearly enough

Large-Scale Melting of Permafrost May Be Underway
Release of CO2 is overlooked in climate models; better monitoring needed

Qatar Pressured to Cut Emissions as New Climate Talks Begin
The rich oil nation, host of the talks, should set more of an example, attendees say

Having Broken CO2 Speed Limit, World Now "Stepping on the Gas"
The United Nations Environment Program warns that global emissions of greenhouse gases are opening up a widening gap between reality and climate change goals

Turning Stumps into Trees Traps Carbon and Revitalizes Village
Encouraging tree growth has helped bring new life to a village in Ethiopia

Global Effort to Reduce Greenhouse Gas Emissions Required to Fight Poverty
The World Bank argues that combating climate change is now a key part of any effort to eliminate poverty

Carbon Emerges as New Solar Power Material
Carbon-based photovoltaic devices might one day replace silicon solar cells

How to Build a More Resilient Electric Grid
In the wake of extreme weather, research is revealing that smart grids and micro-grids can help the electric grid cope

Could a Global Climate Deal Become a Legacy Issue for President Obama?
Obama's reelection may mean a stronger push for an international agreement to combat global warming

Northern Hemisphere Snowpack Likely to Shrink Faster
A new study suggests that water supplies in places like the American West and Central Asia will decline thanks to faster than expected change in snowfall

Climate Change Faster Than Predicted
Earth's atmosphere may be more sensitive to carbon dioxide than previously thought, which means that extreme weather events could become more frequent