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Tag: earths
Peruvian Ice Cores Reveal History Of Earth's Tropical Climate
2013-04-05 22:18:00| Climate Ark Climate Change & Global Warming Newsfeed
RedOrbit: Earth`s tropical climate history has been revealed in unprecedented detail year by year, for almost 1,800 years by two annually dated ice cores drawn from the tropical Peruvian Andes. In 2003, a research team led by Ohio State University retrieved core samples from a Peruvian ice cap. They noticed some startling similarities to ice cores they had gathered from Tibet and the Himalayas. Even though the cores were taken from opposite sides of the planet, patterns in the chemical composition of...
Tags: history
ice
climate
tropical
Computer models show how deep carbon could return to Earth's surface
2013-03-18 22:31:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: Computer simulations of water under extreme pressure are helping geochemists understand how carbon might be recycled from hundreds of miles below Earth's surface. The work, by researchers at the University of California, Davis, and Johns Hopkins University, is published March 18 in the journal Proceedings of the National Academy of Sciences. Carbon compounds are the basis of life, provide most of our fuels and contribute to climate change. The cycling of carbon through the oceans, atmosphere...
Tags: show
return
computer
models
Earth's interior cycles contribute to long-term sea-level and climate change, researchers find
2013-03-18 20:30:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: Ancient rises in sea levels and global warming are partially attributable to cyclical activity below Earth's surface, researchers from New York University and Ottawa's Carleton University have concluded in an analysis of geological studies. However, the article's authors, NYU's Michael Rampino and Carleton University's Andreas Prokoph, note that changes spurred by Earth's interior are gradual, taking place in periods ranging from 60 million to 140 million years -- far less rapidly than those brought...
Tags: find
change
interior
contribute
Scientists Gauge Vulnerability of Earth's "Lungs" To Climate Change
2013-02-07 19:04:00| Climate Ark Climate Change & Global Warming Newsfeed
RedOrbit: Because they draw in carbon dioxide and breathe out oxygen, tropical rainforests are often called "the lungs of the planet." However, yearly variations in climate can cause the amount of carbon dioxide absorbed and released by these forests to vary considerably. A new study conducted by a team of scientists from the University of Exeter, the Met Office-Hadley Centre and the Natural Environmental Research Councils (NERC) Centre for Ecology & Hydrology demonstrates that these variations reveal...
Tags: change
climate
scientists
gauge
Studying ancient Earth's geochemistry
2013-01-18 11:00:00| LifeSciencesWorld
[NEWS] Contact: Frances Jenner fjenner@ciw.edu 202-478-8459 Carnegie Institution Washington, D.C. - Researchers still have much to learn about the volcanism that shaped our planet's early history. New evidence from a team led by Carnegie's Frances Jenner demonstrates that some of the tectonic processes driving volcanic activity, such as those taki…
Tags: ancient
studying
geochemistry
earths
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