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White House: Efficiency Key to Tackling Climate Change

The White House on Monday announced policies designed to help homeowners act on climate change.

Underground Desert Aquifers Could Hold Missing Carbon

Underground desert aquifers fed by irrigation could account for part of the missing land-based carbon sink.

There Is No Carbon Dioxide ‘Technofix,’ Scientists Warn

Researchers warn even if a solution to emissions could be found, it wouldn’t be enough to save the oceans.

Drought May Stunt Forests’ Ability to Capture Carbon

A new study shows that droughts are harming forests' ability to store carbon and mitigate climate change.

Fossil Fuels May Bring Major Changes to Carbon Dating

Fossil fuels are altering the ratio of carbon in the atmosphere, skewing the age of carbon dated objects.

New Grants Fund Research for Underseas Carbon Storage

The federal government is spending $12 million on carbon capture and storage research.

States Cut Power Plant Emissions Ahead of New EPA Rule

Forty-two states are cutting carbon dioxide emissions from power plants ahead of a new EPA rule.

Sharks Face a Growing Threat in Warming and Acidic Seas

Like many other species, sharks face the looming threat of climate and its impact on oceans.

Scorched Earth Is Big Climate Concern in Alaska Wildfires

Alaska's raging start to wildfire season is bad for trees, but the soil they grow in is a bigger climate concern.

The U.S., Brazil and China All Set Major Climate Goals

The U.S., Brazil and China all stepped up their climate commitments in a flurry of activity.

Pope Francis’ Letter on Climate Change Leaked Early

Pope Francis's much-anticipated climate change encyclical was leaked early by an Italian paper.

Scientists Call for Halt to Canadian Oil Sands Expansion

One hundred scientists on Wednesday said further oil sands development isn’t compatible with stabilizing the climate.

Ocean Acidification: Impacts on Sea Life

In a more acidic ocean, shellfish, plankton and corals struggle to adapt.

Ocean Species Set for Reshuffle Unseen in 3 Million Years

If greenhouse gas emissions continue to build, vast changes could come to the world’s oceans.

Report: U.S. Can Make Good on Climate Pledge — Barely

A new report says the U.S. can just make its climate goal, but more needs to be done.

U.S., Mexico, Canada to Collaborate on Climate Adaptation

The U.S., Canada and Mexico are collaborating on sharing clean energy technology and reducing emissions.

May CO2 Peak Shows Trend Is Up, Up, Up

CO2 is about to reach its annual May peak, showing the seemingly inexorable rise in the greenhouse gas levels.

A Global Milestone: CO2 Passes 400 PPM

Global carbon dioxide levels have now officially reached the 400 ppm level, a first for the planet.

The Surprising Link Between Fjords and Carbon

Deep ocean inlets account for about 11 percent of the carbon locked away in marine sediments each year.

California’s Forests Have Become Climate Polluters

An emerging body of research shows that greenhouse gases are billowing out of the state’s woodlands.