Ecology63
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Removing Dams and Restoring Rivers
On Sept. 17, 2011, the removal of two large hydroelectric dams on the Elwha River in Washington State, which have blocked migrating salmon from reaching their spawning grounds for almost 100 years, will begin. While this is the largest dam removal project in U.S. history, it is just one of several major dam removals planned…
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Tree Rings, Ecology and Culture in Mongolia
“How do you know when you are in wilderness? When you have walked beyond where most people walk, when you have left the road … when the easiest route to walk is not a path tread by people but rather the path tread by wolves, moose and deer.”
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Mountaintop Removal: Laying Waste to Streams and Forests
Mountaintop removal mining, an environmentally devastating form of coal mining that involves blowing off the tops of mountains, has already leveled over 500 mountains and buried 1,200 miles of streams in the Appalachians.
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Sewage Still Plagues Hudson River
People are swimming in the Hudson again, and while clumps of sewage rarely float by anymore, the water is not reliably clean, says a report released this week from the environmental group Riverkeeper. Four years of testing by Riverkeeper and Columbia’s Lamont-Doherty Earth Observatory, show recurring hot spots, especially after rain, when overwhelmed sewers divert…
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The Abatement Gap
Results of a recent modeling exercise by the Columbia Climate Center in a collaborative project with Deutsche Bank Climate Change Advisors indicate that the combined impact of more than 350 energy and emissions policies in place across the world fails to reach, by 2020, an emission trajectory consistent with stabilizing atmospheric levels of CO2 at…
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Studying the Farthest-North Trees
A team led by Kevin Anchukaitis of the Lamont-Doherty Earth Observatory Tree Ring Lab is currently in Alaska’s Arctic National Wildlife Refuge, studying the effects of changing climate on trees. Working near the treeline, they’re taking cores from spindly white spruces to measure weather of the past.
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Synthetic Biology: Creating New Forms of Life
When leading genomic scientist, J. Craig Venter announced in May 2010 that he’d created the first self-replicating organism with a totally synthetic genome (the genetic material of an organism), it was the first time many people had heard of synthetic biology. Venter did not actually create a synthetic living organism—rather his research team created a…
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Cape May, New Jersey’s Battle Against Nature
The U.S. Army Corps of Engineers battles an encroaching ocean, but how long will their funding hold out?
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Toxic Waters in the Gilded State
To those who have never been, the Golden State is known for luxurious palm tree-lined avenues, sun-drenched beaches, and picturesque mountains. But not all parts of California were created equal. The state’s San Joaquin Valley hosts a scene entirely different from the images of Malibu beaches depicted in travel brochures. It is the non-glittering core…
