News tagged with climatic variations
Perennial vegetation, an indicator of desertification in Spain
Sep 04, 2009 |
5 / 5 (1) |
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A team of scientists has analyzed 29 esparto fields from Guadalajara to Murcia and has concluded that perennial vegetation cover is an efficient early warning system against desertification in these ecosystems. ...
Rapid changes in the winter climate
Space & Earth / Earth Sciences
Aug 14, 2009 |
4.3 / 5 (4) |
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The Baltic Sea winter climate has changed more in the last 500 years than previously thought. Research at the University of Gothenburg, Sweden, shows that our part of the world has experienced periods of both ...
The sun could be having a 15% or 20% effect on climate change
Space & Earth / Earth Sciences
Jul 18, 2008 |
2.9 / 5 (27) |
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Global warming is mainly caused by greenhouse gas emissions resulting from human activities; however, current climatic variations may be affected “around 15% or 20%” by solar activity, according to the researcher Manuel Vázquez ...
Are the Alps growing or shrinking?
Space & Earth / Earth Sciences
Nov 05, 2009 |
2 / 5 (1) |
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The Alps are growing just as quickly in height, as they are shrinking. This paradoxical result could be proven by a group of German and Swiss geoscientists. Due to glaciers and rivers about exactly the same amount of material ...
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Snail fossils suggest semiarid eastern Canary Islands were wetter 50,000 years ago
Space & Earth / Earth Sciences
Oct 27, 2009 |
2.5 / 5 (2) |
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Fossil land snail shells found in ancient soils on the subtropical eastern Canary Islands show that the Spanish archipelago off the northwest coast of Africa has become progressively drier over the past 50,000 years.
A climate-change amplifying mechanism
Space & Earth / Earth Sciences
Feb 26, 2007 |
4.4 / 5 (18) |
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During the past ninety thousand years there were alternating hot and cold periods lasting several thousand years each which resulted in a modification of global oceanic circulation. With the help of paleoclimatic and paleooceanographic ...
Ice cores map dynamics of sudden climate changes
Jun 19, 2008 |
4.9 / 5 (17) |
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New, extremely detailed data from investigations of ice cores from Greenland show that the climate shifted very suddenly and changed fundamentally during quite few years when the ice age ended. Researchers ...
Researchers Use Sun Cycle to Predict Rainfall Fluctuations
Space & Earth / Earth Sciences
Dec 02, 2008 |
4.5 / 5 (16) |
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(PhysOrg.com) -- The sun’s magnetic field may have a significant impact on weather and climatic parameters in Australia and other countries in the northern and southern hemispheres.
Southern Hemisphere Ants Richer and More Diversified
May 06, 2009 |
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There are fewer species of ants in the northern hemisphere than in the southern hemisphere. This is the conclusion drawn by an international team of scientists that have studied 1,003 local ant assemblages ...
Patagonian glacier yields clues for improved understanding of global climate change
Space & Earth / Earth Sciences
Aug 04, 2008 |
4 / 5 (12) |
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Although ice cores obtained from Antarctica have now provided more than 800 000 years’ worth of climate records, analysis of them alone is insufficient for understanding the history of climatic interactions between the diverse ...
Sophisticated soil analysis for improved land use
Space & Earth / Earth Sciences
May 30, 2008 |
3.6 / 5 (9) |
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Soil variation occurs across multiple geographic scales ranging from vast climatic regions of the Earth to a 50 acre farm field to the molecular world of soil nano-particles in a pinch of soil.
Metabolic syndrome linked to cold tolerance
Feb 15, 2008 |
4.8 / 5 (16) |
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Researchers from the University of Chicago have discovered that many of the genetic variations that have enabled human populations to tolerate colder climates may also affect their susceptibility to metabolic syndrome, a ...
Critical turning point can trigger abrupt climate change
Space & Earth / Earth Sciences
Apr 20, 2009 |
4.6 / 5 (58) |
9
Ice ages are the greatest natural climate changes in recent geological times. Their rise and fall are caused by slight changes in the Earth's orbit around the Sun due to the influence of the other planets. But we do not know ...
Record warm summers cause extreme ice melt in Greenland
Space & Earth / Earth Sciences
Jan 15, 2008 |
3.6 / 5 (8) |
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An international team of scientists, led by Dr Edward Hanna at the University of Sheffield, has demonstrated that recent warm summers have caused the most extreme Greenland ice melting in 50 years. The new research provides ...
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