NASA Scientists See New Signs of Global Warming
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NASA scientists reported that higher temperatures and a retreat of the sea ice over the last two winters offered new evidence that the gases were influencing the ArcticÂs climate.
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A laboratory perched on a windswept ridge in the Arctic should reveal vital clues about our changing planet.
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By Frank D. Roylance, The Baltimore Sun  Feb. 4--Amid continuing warnings that greenhouse gases are driving up global temperatures and raising sea levels, a handful of industries and a small army of scientists are trying to drive those gases underground, where they can't do much harm.
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Climate change, renewable energy and space exploration will be high on the agenda when scientists from around the world gather for the annual meeting of the American Association for the Advancement of Science this week.
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An unexplained jump in greenhouse gases since 2002 might herald a catastrophic acceleration of global warming if it becomes a trend, scientists said on Monday.
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New data showing overlap in patterns of water and methane in Mars' atmosphere may have implications for the idea that life exists there.
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Scientists now have their first direct evidence of changing weather patterns on Titan, Saturn's largest moon.
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Nasa says it has found "compelling" evidence that water flowed recently on the Martian surface.
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To witness the impact of a warming planet, one need not make a costly trip to the melting Arctic ice cap. Proof of climate change is right there in most people's backyards, scientists said on Tuesday.
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Two NASA probes well past their prime have a fresh lease on life and new missions ahead, the space agency announced Tuesday.
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TONY EASTLEY: Scientists have confirmed there has been a dramatic and unexpected increase in carbon dioxide levels. It&#39;s raised fears that the ability of the earth&#39;s oceans and plants to absorb carbon dioxide may be declining.
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Climate scientists agree there have  been a lot of strong hurricanes lately. They agree that warmer  seas have given these storms some extra punch. But they  disagree how much global warming is to blame.
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Scientists are warning that the earth&#39;s climate could be changing more rapidly than anyone thought because of a sudden and unexplained rise in the main greenhouse gas, carbon dioxide.
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Politicians in the nation's capital have been reluctant to set limits on the carbon dioxide pollution that is expected to warm the planet by 4 to 7 degrees Fahrenheit during the next century, citing uncertainty about the severity of the threat. But that uncertainty may have shrunk somewhat with the release last week of two scientific reports suggesting that global warming is not just a hypothetical possibility, but a real phenomenon that has already started transforming especially sensitive parts of the globe.
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Carbon dioxide emissions from global warming are cooling and shrinking the outermost atmosphere, keeping orbiting spacecraft airborne longer but also increasing the threat that space junk poses to satellites, scientists reported Monday.
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In response to growing concerns over the planet's future, scientists are proposing some radical ideas to combat global warming.
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Scientists are sifting through their first new views of the planet Mercury in more than three decades thanks to images beamed home by NASA's MESSENGER probe.