Earth Sciences99
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Clues from Last Ice Age May Hint at Drying Ahead for Some Regions
In the spectacular collapse of ice sheets as the last ice age ended about 18,000 years ago scientists hope to find clues for what regions may grow drier from human caused global warming. In a talk Thursday at the American Geophysical Union’s annual meeting, Aaron Putnam, a postdoctoral scholar at Lamont-Doherty Earth Observatory, painted a…
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Huge Landslide Linked to Glacier Surge in Tajikstan’s Pamir Mountains
Glaciers advance in colder temperatures, but sometimes a big rock avalanche can also make a glacier grow, new research results presented at the American Geophysical Union’s annual meeting suggests.
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How the Warming Arctic Affects Us All
The Arctic may seem remote, but the overall rate of global warming, our climate and weather, sea levels, and many ecosystems and species will be affected by the warming that is occurring there.
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Tree Rings and Teachable Moments
Nicole Davi, a postdoctoral scientist at the International Research Institute for Climate and Society and the Lamont Doherty Earth Observatory, thinks tree rings are an ideal way to motivate students to collect and analyze data as well as to learn about climate change.
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If You’re Not Going to San Francisco
Keep an eye on State of the Planet over the next week for updates on the fall meeting of the American Geophysical Union.
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Frozen Water on Mercury, NASA Confirms
Mercury, the planet closest to the Sun, may hold at least 100 billion tons of ice in permanently shaded craters near its north pole, NASA scientists announced Thursday. The findings come as NASA’s MESSENGER spacecraft nears its second year of orbit around Mercury. MESSENGER’s lead investigator, Sean Solomon, is director of Columbia University’s Lamont-Doherty Earth…
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What Hurricane Sandy Was Not
“It is often said that generals always prepare to fight the last war. We need to be sure that we do not just prepare for the last disaster, and put all of our limited resources in guarding against that one, without thinking about the other things that could happen.”
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Tree Rings to Investigate Chimborazo’s Past Climate
The landscape around Chimborazo resembles the high desert in parts of the western United States. The terrain approaching Chimborazo is arid and rocky in appearance, with mostly small grassy and shrub-like vegetation growing on it. Finding trees large enough to sample above 4000 meters was, needless to say, a bit of a challenge, but they…
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Putting Up Weather Station Chimborazo
Changes in glacier mass will have significant social and economic consequences for cities around Chimborazo and I’m hoping the specially built weather station will shed more light on the climate factors contributing to glacier loss.
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