A new study shows the Arctic climate system may be more sensitive to greenhouse warming than previously thought, and that current levels of Earth's atmospheric carbon dioxide may be high enough to bring about significant, ...
Earth Sciences
Jun 29, 2010
47
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Scientists still puzzle over how Earth emerged from its last ice age, an event that ushered in a warmer climate and the birth of human civilization. In the geological blink of an eye, ice sheets in the northern hemisphere ...
Earth Sciences
Jun 25, 2010
11
1
By examining 800,000-year-old polar ice, scientists increasingly are learning how the climate has changed since the last ice melt and that carbon dioxide has become more abundant in the Earth's atmosphere.
Earth Sciences
Jun 18, 2010
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Increasingly, the Earth's climate appears to be more connected than anyone would have imagined. El Nino, the weather pattern that originates in a patch of the equatorial Pacific, can spawn heat waves and droughts as far away ...
Earth Sciences
Jun 17, 2010
22
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(PhysOrg.com) -- NASA's first dedicated oceanographic field campaign goes to sea June 15 to take an up-close look at how changing conditions in the Arctic are affecting the ocean's chemistry and ecosystems that play a critical ...
Earth Sciences
Jun 8, 2010
2
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(PhysOrg.com) -- Scientists have found the possible source of a huge carbon dioxide 'burp' that happened some 18,000 years ago and which helped to end the last ice age.
Earth Sciences
May 27, 2010
18
0
In response to growing concerns about our planet’s changing climate, rising global temperatures and sea levels, and increasing concentrations of atmospheric carbon dioxide (CO2), scientists are looking to the planet’s ...
Earth Sciences
Apr 29, 2010
8
0
Climate sensitivity is the term used by the Intergovernmental Panel on Climate Change (IPCC) to express the relationship between the human-caused emissions that add to the Earth's greenhouse effect -- carbon dioxide and a ...
Earth Sciences
Mar 19, 2010
4
0
Three British explorers set out on a skiing expedition on Monday across 500 kilometers (310 miles) of floating sea ice to investigate rising acid levels in the Arctic Ocean that threaten marine life.
Earth Sciences
Mar 15, 2010
0
0
The increase in temperature in the Arctic has already caused the sea-ice there to melt. According to research conducted by the University of Gothenburg, Sweden, if the Arctic tundra also melts, vast amounts of organic material ...
Earth Sciences
Jan 11, 2010
2
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