sciam.com - 1/13/2009
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Rare is the forest untouched by man. Whether logging or clearing land for agriculture , the bulk of the world's forests have fallen to crops, cattle or younger trees. According to some estimates, less than 10 percent of forests worldwide can be considered old growth, or undisturbed for more than ...
sciam.com - 1/15/2009
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sciam.com —
It's a topic that is likely to come
up more and more after President-elect Barack Obama moves
into the White House next week. Obama has said that preventing and reversing global warming will be a top priority in his administration a change from the ...
(more)
Is combating climate change worth the cost?: Scientific ...
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Green Glossary: Old Growth Forests
Planet Green Articles Feed —
... is "a forest stand usually at least 180-220 years old with moderate to high canopy closure; a multilayered, multispecies canopy dominated by large overstory trees; high incidence of large trees, some with broken tops and other indications of old and decaying wood (decadence); numerous large snags; and heavy accumulations of wood, including large logs on the ground." "Rare is the forest untouched by man," writes David Biello in ...
Out on a Limb: Global Warming May Be Killing Old-Growth Forests
Ecoearth.info Blog —
... the problem: not enough new trees are sprouting to replace the dead and dying old ones."It's like a human population," says study co-author Nathan Stephenson, a USGS research ecologist. It shrinks, he says, when the mortality rate outpaces the birth rate. "If you saw that going on in your hometown," he adds, "you'd become concerned." This pattern could eventually lead to sparser forests in which trees are younger and about half the size of what they are now. Today's towering old-growth forests help to mitigate ...
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scientificamerican.com 8/5/2009 — Rare is the forest untouched by man. Whether logging or clearing land for agriculture , the bulk of the world's forests have fallen to crops, cattle or younger trees. According to some estimates, less than 10 percent of forests worldwide can be ...
Old-Growth Forests Dying Off in US West
washingtonpost.com 1/23/2009 — Washington Post: Trees in old-growth forests in the Western United States are dying at twice the rate they were a few decades ago, and experts suspect regional warming is to blame. The report, led by the U.S. Geological Survey (USGS), found that the ...
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Out on a Limb: Global Warming May Be Killing Old-Growth Forests
sciam.com 1/26/2009 — The majestic old-growth forests of western North America, greening patches of the landscape from Arizona to British Columbia, may be far more vulnerable to subtle climate change than scientists previously believed. A study published today in the ...
How Can We Combat Climate Change? | Air America Media
airamerica.com 6/29/2009 — Montel Across America On Friday, the American Clean Energy and Security Act of 2009 (Waxman-Markey Climate Change bill) passed the U.S. House of Representatives, 219-212. The author of the bill, Representative Henry Waxman (D-CA) joined Montel on ...
Connecting Science and Policy to Combat Climate Change
sciam.com 3/17/2009 — Tricky diagnoses abound, whether the field is medicine, auto repair or high finance. For climate change the problem is magnified: Those who have spent decades diagnosing the problem have no power to write the prescription. [More]
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Are greener gadgets even possible?: Scientific American Blog
sciam.com 3/3/2009 — The urge to buy the latest gadget and to reform environmental misbehavior may be the twin pillars of 21st century American youth culture, but can the two ever be reconciled? Apple, Dell, Intel, Nokia and others companies with an array of "green" ...
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