Small volcanic eruptions could be slowing global warming

Small volcanic eruptions might eject more of an atmosphere-cooling gas into Earth's upper atmosphere than previously thought, potentially contributing to the recent slowdown in global warming, according to a new study.

Study suggests warmth, flowing water on early Mars were episodic

Ample evidence of ancient rivers, streams, and lakes make it clear that Mars was at some point warm enough for liquid water to flow on its surface. While that may conjure up images of a tropical Martian paradise, new research ...

Analysts assess new EPA rules cutting power plant emissions

The U.S. Environmental Protection Agency (EPA) has issued its long-awaited draft regulations on carbon emissions from U.S. power plants, which would require a 30 percent reduction in carbon dioxide emissions from 2005 levels ...

Scientists study how marine bacteria release cloud-making compound

(Phys.org) —University of Georgia marine scientists are uncovering the mechanisms that regulate the natural production of an anti-greenhouse gas. A new $2 million National Science Foundation grant will allow the UGA-led ...

Probing hydrogen catalyst assembly

Biochemical reactions sometimes have to handle dangerous things in a safe way. New work from researchers at UC Davis and Stanford University shows how cyanide and carbon monoxide are safely bound to an iron atom to construct ...

US power plant emissions down, study finds

Power plants that use natural gas and a new technology to squeeze more energy from the fuel release far less of the greenhouse gas carbon dioxide than coal-fired power plants do, according to a new analysis accepted for publication ...

Chasing down fugitive emissions

In an effort to respond to President Obama's call to reduce greenhouse gas emissions by 28 percent by the year 2020, researchers at the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) have identified ...

New emissions standards would fuel shift from coal to natural gas

Tougher EPA air-quality standards could spur an increased shift away from coal and toward natural gas for electricity generation, according to a new Duke University study. Complying with stricter regulations on sulfur dioxide, ...

US to require lower-sulfur gasoline

The Obama administration is expected to propose new rules Friday that would slash the amount of sulfur in gasoline, one of the most significant steps the administration can take this term toward cutting air pollution, said ...

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