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Climate change is a foregone conclusion. The amount of carbon dioxide already in the atmosphere from two centuries-worth of fossil fuel burning (and, apparently, with decades more worth to come, given the glacial pace of efforts to slow said emissions) is enough to substantially warm global average temperatures

Clean power from the Earth used to use a lot of water. But a new discovery means that water can be replaced with CO2, which gets left in the ground and doesn't alter the climate

Damned if you do, damned if you don't. A new study finds that while biodegradable products help reduce mass in landfills, they may be worsening global warning. Luckily, there's a solution: Make earth-friendly plastics that actually disintegrate more slowly.

Behold the halo effect of the new commercial space biz : Zero-G , a Vienna, Va.-based company that specializes in flying passengers on modified jets to simulate orbital weightlessness, just got safety approval to train passengers and crew for simple space flight. And lest you begin worrying this new era is all about pointless fun and not science, the company can help researchers prepare their gear before flying it into space

In 1959 physicist Gilbert Plass warned in Scientific American that increasing concentrations of carbon dioxide in the atmosphere was causing climate change. In 1965 President Lyndon Johnson warned Congress of the risk . In 1979 the U.S

NEW YORK -- A new scientific study suggests that the severe flooding that hit northern Australia earlier this year may have not been caused by rising global temperatures induced by greenhouse gases, but rather by the hole in the ozone layer. Research published last week by scientists at Columbia University's School of Engineering and Applied Science, in conjunction with partners in Canada, purports to demonstrate how the massive hole in the ozone layer of the atmosphere high above Antarctica is altering rainfall patterns in the Southern Hemisphere. The study ran in Science magazine Friday

“We are definitely in uncharted waters, particularly given that the spent fuel pool appears to either not have water or have very little water.

KIEV, Ukraine--In 1986 the worst nuclear accident in history took place when reactor No. 4 in the power plant at nearby Chernobyl exploded, spewing large amounts of radiation into the atmosphere. Now, almost 25 years later, the lesson that scientists are learning is that radiation might not be the only cause of this disaster's long-term medical effects, and perhaps not even the main one.

As the situation at Japan's 40-year-old Fukushima Daiichi nuclear plant goes from bad to worse--four of the plant's six boiling water reactors have been damaged by explosions or fire and radiation has begun leaking into the atmosphere--officials there continue to pump the reactors with seawater in an attempt to cool down fuel rods and avoid a complete meltdown that could release radioactive fallout across much of country.

As worldwide demand for both food and biofuels increases, so does the the demand for palm oil, which can be used for both food and biofuel production. But while biofuels may cut down on CO2 emissions compared to petroleum, palm oil plantations have the nasty effect of releasing CO2 into the atmosphere--and the problem is only getting worse, according to a study from the Swiss Federal Institute of Technology and the National University of Singapore.

The first indication that our expedition was not going as planned was the abrupt sputter and stop of the boat’s inboard engine at 2 a.m.

The keys to understanding future climate change may be locked in rocks and sediments that act as records of conditions millions or billions of years ago, the National Academy of Sciences said yesterday.