Search results for climatic variations
Are the Alps growing or shrinking?
Space & Earth / Earth Sciences
Nov 05, 2009 |
2 / 5 (1) |
0
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 ...
Strong regional climatic fluctuations in the tropics
Space & Earth / Earth Sciences
Dec 02, 2009 |
4.7 / 5 (3) |
0
Climatic fluctuations close to the equator show a different pattern to climate change in the Arctic and Antarctic. In the tropics distinct 11500 year fluctuations between wet and dry periods can be clearly identified which ...
The sun could be having a 15% or 20% effect on climate change
Space & Earth / Earth Sciences
Jul 18, 2008 |
2.9 / 5 (27) |
11
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 ...
Snail fossils suggest semiarid eastern Canary Islands were wetter 50,000 years ago
Space & Earth / Earth Sciences
Oct 27, 2009 |
2.5 / 5 (2) |
0
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) |
0
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) |
1
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) |
0
(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.
Alpine lakes beginning to show effects of climate change
Aug 26, 2008 |
2.3 / 5 (12) |
7
A recent study forecasts that increased climatic variability poses serious consequence for both the biodiversity and ecosystem function of high-elevation lakes.
Southern Hemisphere Ants Richer and More Diversified
May 06, 2009 |
4.7 / 5 (3) |
0
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 ...
Perennial vegetation, an indicator of desertification in Spain
Sep 04, 2009 |
5 / 5 (1) |
0
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. ...
Study shows competition, not climate change, led to Neanderthal extinction
Other Sciences / Archaeology & Fossils
Dec 29, 2008 |
4.6 / 5 (10) |
4
In a recently conducted study, a multidisciplinary French-American research team with expertise in archaeology, past climates, and ecology reported that Neanderthal extinction was principally a result of competition with ...
UK University to probe integrity of climate data
Dec 03, 2009 |
4.3 / 5 (6) |
5
(AP) -- A British university said Thursday it would investigate whether scientists at its prestigious Climatic Research Unit fudged data on global warming.
Patagonian glacier yields clues for improved understanding of global climate change
Space & Earth / Earth Sciences
Aug 04, 2008 |
4 / 5 (12) |
0
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 ...
No oxygen in Eastern Mediterranean bottom-water
Space & Earth / Earth Sciences
Sep 24, 2008 |
4.1 / 5 (7) |
0
Research from Utrecht University shows that there is an organic-rich bed of sediment in the floor of the Eastern Mediterranean. This bed formed over a period of about 4000 years under oxygen-free bottom-water ...
Peruvian stalagmites a new basis for 'Inconvenient truth'?
Space & Earth / Earth Sciences
Apr 29, 2009 |
2.9 / 5 (7) |
5
Will the Netherlands that is dominated by water succumb to the 'Inconvenient Truth' predicted by Al Gore? Dutch researcher Martin van Breukelen analysed stalagmites from the South American Amazon tributaries in Peru. He used ...
