News tagged with climate dynamics
Related topics: climate change , climate
Annual Arctic sea ice less reflective than old ice
In the Arctic Ocean, the blanket of permanent sea ice is being progressively replaced by a transient winter cover. In recent years the extent of the northern ocean's ice cover has declined. The summer melt season is starting ...
Space & Earth / Earth Sciences
May 17, 2012 |
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Seeing beyond the invisible: Scientists find formula to uncover our planet’s past and help predict its future
(PhysOrg.com) -- Studies of climate evolution and the ecology of past-times are often hampered by lost information - lost variables needed to complete the picture have been long thought untraceable but scientists ...
May 27, 2009 |
3.8 / 5 (6) |
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Can scientists look at next year's climate?
(PhysOrg.com) -- Is it possible to make valid climate predictions that go beyond weeks, months, even a year? UCLA atmospheric scientists report they have now made long-term climate forecasts that are among ...
Space & Earth / Earth Sciences
Sep 12, 2011 |
4.6 / 5 (9) |
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Climate change's impact on Arctic regions by 2099: study
(PhysOrg.com) -- Imagine the vast, empty tundra in Alaska and Canada giving way to trees, shrubs and plants typical of more southerly climates. Imagine similar changes in large parts of Eastern Europe, northern ...
Space & Earth / Earth Sciences
Mar 14, 2011 |
3 / 5 (13) |
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Supercomputers may help predict climate changes locally
Even a century ago, scientists working out equations on paper understood that gases in the atmosphere absorbed and emitted energy, keeping Earth from being a ball of ice. Today they use supercomputers to make increasingly ...
Space & Earth / Earth Sciences
Aug 07, 2011 |
4.2 / 5 (5) |
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Testing geoengineering
Solar radiation management is a class of theoretical concepts for manipulating the climate in order to reduce the risks of global warming caused by greenhouse gasses. But its potential effectiveness and risks are uncertain, ...
Oct 26, 2011 |
3.7 / 5 (3) |
1
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Study links swings in North Atlantic oscillation variability to climate warming
Using a 218-year-long temperature record from a Bermuda brain coral, researchers at the Woods Hole Oceanographic Institution (WHOI) have created the first marine-based reconstruction showing the long-term behavior of one ...
Space & Earth / Earth Sciences
Jan 13, 2009 |
4.1 / 5 (18) |
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Looking ahead to local climate models
When research scientist Jim Kinter describes the interactions between the Earth's ocean, land and atmosphere, he talks of dancing. "The atmosphere and the ocean, and the atmosphere and the land surface have ...
Space & Earth / Earth Sciences
Jul 15, 2011 |
5 / 5 (2) |
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More frequent drought likely in eastern Africa
The increased frequency of drought observed in eastern Africa over the last 20 years is likely to continue as long as global temperatures continue to rise, according to new research published in Climate Dy ...
Space & Earth / Earth Sciences
Jan 28, 2011 |
2 / 5 (6) |
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Agricultural methods of early civilizations may have altered global climate, study suggests
Massive burning of forests for agriculture thousands of years ago may have increased atmospheric carbon dioxide enough to alter global climate and usher in a warming trend that continues today, according to a new study that ...
Space & Earth / Earth Sciences
Aug 17, 2009 |
3.5 / 5 (11) |
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The least sea ice in 800 years
New research, which reconstructs the extent of ice in the sea between Greenland and Svalbard from the 13th century to the present indicates that there has never been so little sea ice as there is now. The ...
Space & Earth / Earth Sciences
Jul 01, 2009 |
4.1 / 5 (66) |
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In forests, past disturbances obscure warming impacts
Past disturbances, such as logging, can obscure the effects of climate change on forest ecosystems. So reports a study just published in the Proceedings of the National Academy of Sciences. The paper, explor ...
Mar 05, 2012 |
5 / 5 (4) |
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Aquatic creatures mix ocean water
Understanding mixing in the ocean is of fundamental importance to modeling climate change or predicting the effects of an El Niño on our weather. Modern ocean models primarily incorporate the effects of winds and tides. However, ...
Nov 22, 2009 |
5 / 5 (4) |
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Mathematics and climate change: Gaining insights into the nature of sea ice
In 1994, University of Utah mathematician Ken Golden went to the Eastern Weddell Sea for the Antarctic Zone Flux Experiment. The sea's surface is normally covered with sea ice, the complex composite material that results ...
Apr 13, 2009 |
4.7 / 5 (7) |
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Shrinking tundra, advancing forests: How the Arctic will look by century's end
Imagine the vast, empty tundra in Alaska and Canada giving way to trees, shrubs and plants typical of more southerly climates. Imagine similar changes in large parts of Eastern Europe, northern Asia and Scandinavia, as needle-leaf ...
Space & Earth / Earth Sciences
Mar 03, 2011 |
3.8 / 5 (5) |
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