All Stories by Sid Perkins
- Earth
O River Deltas, Where Art Thou? Coastal sinking stalls sediment accumulation
The western coast of Siberia lacks river deltas because of the way the terrain has subsided since the end of the last ice age.
- Earth
It’s not nice to fool Mother Nature
Throwing tiny particles into the atmosphere to counteract global warming could cause extended droughts and other weather disruptions.
- Earth
Asian Forecast: Hazy, Warmer—Clouds of pollution heat lower atmosphere
Clouds of smoke and soot that blanket many regions of Asia heat the lower atmosphere by the same amount that rising greenhouse gases do.
- Paleontology
Dinosaurs’ gradual rise to dominance
Early dinosaurs didn't quickly eclipse the creatures they evolved from, but lived alongside them for perhaps 20 million years.
- Earth
Light reaches deep in southeast Pacific
In a remote part of the southeastern Pacific where marine life is sparse, ultraviolet light penetrates to unprecedented depths.
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- Earth
Stunting Growth: Ozone will trim plants’ carbon-storing power
Increasing ground-level ozone due to pollution will stifle the growth of vegetation in many regions, accelerating the buildup of planet-warming carbon dioxide in the atmosphere.
- Earth
Erosion accelerates along Alaskan coast
Alaska's northern coast is falling into the sea at an accelerating rate.
- Earth
Birth of an Island: Megaflood severed Europe from Britain
Hundreds of thousands of years ago, the spillover from an immense glacial lake carved a chasm that in a matter of weeks separated what is now Britain from continental Europe.
- Ecosystems
Sea Change: People have affected what penguins eat
Adélie penguins in Antarctica significantly changed their eating habits about 200 years ago, after whaling and other human activities transformed the ocean ecosystem.
- Earth
As the last ice age waned, a great lake was born
Lake Agassiz, a huge and now vanished freshwater lake, formed almost 14,000 years ago, toward the end of the last ice age.
- Earth
Polymer Breakdown: Reaction offers possible way to recycle nylon
A new chemical process offers hope that the thousands of tons of nylon thrown away every year could one day be recycled.
