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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.

Oil Drilling May Slow Drought Recovery in Great Plains

Drilling and fracking are creating “industrialized landscapes” that may forever alter ecosystems.

These Are The Amazon Trees That Keep The Planet Cool

Scientists pinpoint a small number of tree species that hold the most carbon in the Amazon rainforest.

Blooming Algae Could Accelerate Arctic Warming

A new study says waning Arctic sea ice could lead to algae blooms that will trap extra heat from the sun.

New NASA Satellite Gets the Dirt on Soil Moisture

NASA's SMAP satellite has sent back the first global look at soil moisture, a key drought indicator.

New Studies Reveal Climate Extremes From Fire to Ice

Two new studies show how drastically CO2 has affected Earth's climate in the distant past.

UK Sees Biggest Drop in Emissions Since 1990

Greenhouse gas emissions fell 8 percent, while renewable energy rose to a record high.

Amazon Trees Removed Almost a Third Less Carbon

Carbon absorbed by the rainforest is falling, so greater cuts to emissions are needed, warn scientists.

Deforestation Slowing, But Forests Are Breaking Down

Pollution from deforestation is slowing down, but degradation is worsening in forests that still remain.

Public Lands May Be America’s Best Climate Defense

National forests, parks and other public lands play a major role in America's defense against climate change.

CO2 Boosts Trees, But Ups Damage From Forest Pests

Carbon dioxide fertilizes forests, but it also encourages bugs to feast, dissipating the climate benefits.

Drought Weakens the Amazon’s Ability to Capture Carbon

The Amazon inhales less carbon dioxide during drought years, a major concern as the region dries.

Geoengineering Holds Promise; Solutions Not Ready

Geoengineering offers solutions and risks but reducing emissions is still the best way to address climate change.

Tropical Forests Play Huge Role in Inhaling Emissions

Tropical forests may absorb one-third of human fossil fuel emissions, a new study says.

Green Bonds May Help Limit Effects of Climate Change

Green bonds are drawing increased attention for financing projects that provide climate benefits.

6 Degrees: Drought Relief, Europe Heats Up, CO2 & More

California gets some drought relief, Europe sets records, the Arctic gets warmer and more.

NASA Satellite Sends Back Most Detailed View of CO2

Fresh data from NASA reveals a comprehensive global view of CO2 in full color.

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Renewable Fuel Standard The federal Renewable Fuel Standard encourages U.S. corn ethanol producers to boost production to 9 billion gallons by 2008.

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