Sid Perkins
Sid Perkins is a freelance science writer based in Crossville, Tenn.
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All Stories by Sid Perkins
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Planetary Science
Worldwide slowdown in plant carbon uptake
A decade of droughts has stifled the increasing growth of terrestrial vegetation.
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Haiti quake reveals previously unknown fault
Scientists say the risk of future temblors in region is unclear.
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Earth
Forest loss slows in Brazilian Amazon
Between 2004 and 2009, the rate of clearing dropped almost 75 percent.
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Earth
Rodent poop gauges ancient rains
The size of chinchilla pellets reveals past desert environment.
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Ecosystems
Frogs leapt before they landed
Jumping preceded mastery of the touchdown in amphibian evolution, a new study suggests.
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Planetary Science
Hole from on high
Researchers discover a fresh meteorite impact crater using Google Earth.
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Earth
Mangroves do a coast good
Left intact, dense swaths of trees can reduce tsunami damage, a new study suggests.
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Earth
Africa’s bumper crop of dust
Seafloor sediments show that agriculture has greatly boosted airborne dust in the last two centuries.
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Climate
Methane releases in arctic seas could wreak devastation
Warming climate could lead to dead zones, acidification and shifts at the base of the ocean’s food chain.