Old photos show that Teton glaciers are shrinking

Researchers found that two of the Tetons' biggest glaciers have lost more than 20 percent of their surface area since the late 1960s.

Study says global warming shrinks birds

Scientists found that eight species had become between 2 to 4 percent smaller over the past century.

The latest on hydrofluorocarbons

A new study finds that hydrofluorocarbons could become a significant factor in future warming.

A Pacific island chain with real energy incentive

Tuvalu, a nation of nine islands, is taking steps to completely rely on renewable energy by 2020.

Adapting to climate change depends on site-specific knowledge

Column: One size doesn't fit all when it comes to coping with the effects of climate change.

Key points of the climate-energy bill before Congress

Lawmakers craft a bill that will move the US to a far cleaner energy policy.

Green Stuff: eco-news

New discoveries about reefs, pinniped evolution, and climate change.

New study: Less sea rise expected from possible Antarctic melt

Is a bad economy good for the environment?

A recession may be a cruel remedy for environmental degradation. But some experts say the earth welcomes the breathing room.

Carbon emissions pose danger, EPA finds

Agency’s move lays the foundation for expanding US regulation of thousands of companies.

How climate change may be threatening national parks

Thriving forest pests and melting glaciers may make parks a warning system for climate change effects.

Climate may heat crises, too, military analysts say

Competition for resources, ‘climate migrants,’ failed states are among top concerns.

New way to farm boosts climate, too

‘Organic no-till’ combines best of two methods and sequesters most carbon. But can it work consistently?

California’s climate change bill could top $100 billion

Rising sea levels and extreme storms could displace 480,000 people and damage businesses and airports, a new study says.

Canada’s carbon sink has sprung a leak

Until recently, its vast forests vacuumed up carbon dioxide. Now that process has been thrown in reverse.

Could technology repair Earth’s climate?

EarthTalk: Scientists study ways to pull greenhouse gases out of our atmosphere, but the idea is controversial.

Does bitter winter weather refute climate-change claims?

EarthTalk: The answer lies in the difference between ‘climate’ and ‘weather.’

Drought threatens China’s wheat crop

The region that produces 95 percent of the country’s wheat is facing its worst drought in 50 years.

Which is the bigger polluter – humans or volcanoes?

EarthTalk: If you said ‘volcanoes,’ guess again. Here’s why.

How to stash carbon dioxide: Turn it into stone.

Dissolved in water and pumped underground, CO2 becomes limestone.