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Carbon Dioxide Was Hidden in the Ocean During Last Ice Age
March 29, 2012 — Why did the atmosphere contain so little carbon dioxide during the last Ice Age 20,000 years ago? Why did it rise when the Earth's climate became warmer? Processes in the ocean are responsible for ... > full story -
Scientists Use Rare Mineral to Correlate Past Climate Events in Europe, Antarctica
March 21, 2012 — Are climate changes in one part of the world felt half a world away? To understand the present, scientists look for ways to unlock information about past climate hidden in the fossil record. ... > full story -
Cosmic Rays Alter Chemistry of Lunar Ice, May Create Building Blocks of Life
March 19, 2012 — Space scientists report they have quantified levels of radiation on the moon's surface from galactic cosmic ray (GCR) bombardment that over time causes chemical changes in water ice and can create ... > full story -
Hazy Shades of Life on Early Earth
March 18, 2012 — When microbes ruled the world -- new research provides evidence of the key role played by microorganisms in the creation of our atmosphere and the development of complex life on ... > full story -
Past in Monsoon Changes Linked to Major Shifts in Indian Civilizations
March 16, 2012 — A fundamental shift in the Indian monsoon has occurred over the last few millennia, from a steady humid monsoon that favored lush vegetation to extended periods of drought, researchers report. Their ... > full story -
Was Human Evolution Caused by Climate Change?
March 15, 2012 — Models of how animal and plant distributions are affected by climate change may also explain aspects of human ... > full story -
New Study Lowers Estimate of Ancient Sea-Level Rise
March 14, 2012 — The seas are creeping higher as the planet warms. But how high will they go? In Bermuda and the Bahamas, researchers have gone looking for answers; By pinpointing where shorelines stood during a warm ... > full story -
Near-Earth Object Impacts
Asteroids, Comets and Meteors
Early Climate
Environmental Issues
Geography
Earth Science
New Research Supports Theory of Extraterrestrial Impact
March 5, 2012 — Scientists have identified a nearly 13,000-year-old layer of thin, dark sediment buried in the floor of Lake Cuitzeo in central Mexico. The sediment layer contains an exotic assemblage of materials, ... > full story -
Demise of Early Large Animals Caused by Both Humans and Climate Change
March 5, 2012 — Past waves of extinctions which removed some of the world's largest animals were caused by both people and climate change, according to new ... > full story -
Sturdy Scandinavian Conifers Survived Ice Age
March 1, 2012 — Until now, it was presumed that the last glacial period denuded the Scandinavian landscape of trees until a gradual return of milder weather began and melted away the ice cover some 9,000 years ago. ... > full story
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