News tagged with warm periods
New technique suggests Medieval Warm Period made it to Antarctica
Scientists have developed a new method of reconstructing past climates that uses the water locked inside crystals in seabed sediment to shed light on the history of the Antarctic.
Space & Earth / Earth Sciences
May 01, 2012 |
4.4 / 5 (7) |
32
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CO2 was hidden in the ocean during the Ice Age: study
Why did the atmosphere contain so little carbon dioxide (CO2) 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 this, says a new study ...
Space & Earth / Earth Sciences
Mar 29, 2012 |
4.5 / 5 (10) |
50
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Scientists use rare mineral to correlate past climate events in Europe, Antarctica
The first day of spring brought record high temperatures across the northern part of the United States, while much of the Southwest was digging out from a record-breaking spring snowstorm. The weather, it seems, has gone ...
Space & Earth / Earth Sciences
Mar 21, 2012 |
4.5 / 5 (4) |
0
New research lowers estimate of ancient sea-level rise
The seas are creeping higher as the planet warms. But how high will they go? Projections for the year 2100 range from inches to several feet, or more. The sub-tropical islands of Bermuda and the Bahamas contain ...
Space & Earth / Earth Sciences
Mar 14, 2012 |
4.8 / 5 (5) |
5
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Dinosaur forests mapped
The first detailed maps of the Earth's forests at the time of the dinosaurs have been drawn up. The patterns of vegetation, together with information about the rate of tree growth, support the idea that the ...
Space & Earth / Earth Sciences
Feb 28, 2012 |
4.6 / 5 (5) |
7
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Global extinction: Gradual doom is just as bad as abrupt
A painstakingly detailed investigation shows that mass extinctions need not be sudden events. The deadliest mass extinction of all took a long time to kill 90 percent of Earth's marine life, and it killed ...
Space & Earth / Earth Sciences
Feb 03, 2012 |
4.2 / 5 (20) |
0
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Global warming caused by greenhouse gases delays natural patterns of glaciation
Unprecedented levels of greenhouse gases in the Earth's atmosphere are disrupting normal patterns of glaciation, according to a study co-authored by a University of Florida researcher and published online Jan. 8 in Nature Ge ...
Space & Earth / Earth Sciences
Jan 08, 2012 |
3.5 / 5 (29) |
114
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Carbon cycling was much smaller during last ice age than in today's climate: study
Atmospheric carbon dioxide (CO2) is one of the most important greenhouse gases and the increase of its abundance in the atmosphere by fossil fuel burning is the main cause of future global warming. In past ...
Space & Earth / Earth Sciences
Nov 20, 2011 |
3.6 / 5 (11) |
14
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Humans and climate contributed to extinctions of large ice-age mammals, study finds
the woolly rhinoceros, woolly mammoth, wild horse, reindeer, bison, and musk ox -- is the subject of a study by an international group of scientists investigating how climate fluctuations and human activity ...
Nov 02, 2011 |
4 / 5 (5) |
7
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Scientists develop new coral dating method, hint at future sea-level changes
New evidence of sea-level oscillations during a warm period that started about 125,000 years ago raises the possibility of a similar scenario if the planet continues its more recent warming trend, says a research team led ...
Space & Earth / Earth Sciences
Sep 11, 2011 |
5 / 5 (7) |
8
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Rising oceans - too late to turn the tide?
Melting ice sheets contributed much more to rising sea levels than thermal expansion of warming ocean waters during the Last Interglacial Period, a UA-led team of researchers has found. The results further ...
Space & Earth / Earth Sciences
Jul 15, 2011 |
4.8 / 5 (20) |
45
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Arctic climate variation under ancient greenhouse conditions
Tiny organisms preserved in marine sediments hold clues about Arctic climate variation during an ancient episode of greenhouse warming.
Space & Earth / Earth Sciences
Feb 11, 2011 |
4.9 / 5 (9) |
6
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Climate flux matched Europe's social rise and fall
Ancient tree rings show links between climate change and major events in human history, like migrations, plagues and the rise and fall of empires, said a study this week in the journal Science.
Space & Earth / Earth Sciences
Jan 14, 2011 |
4.4 / 5 (14) |
98
US southwest could see 60-year drought: study
An unprecedented combination of heat plus decades of drought could be in store for the Southwest sometime this century, suggests new research from a University of Arizona-led team.
Dec 13, 2010 |
3.9 / 5 (27) |
74
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Bering Sea was ice-free and full of life during last warm period, study finds
Deep sediment cores retrieved from the Bering Sea floor indicate that the region was ice-free all year and biological productivity was high during the last major warm period in Earth's climate history.
Space & Earth / Earth Sciences
Dec 13, 2010 |
4.6 / 5 (9) |
120
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