Latest Climate variability Stories

Image 1 - The Snows Of Mount Washington
2012-03-06 04:15:33

Climate and environmental change in the U.S. northeast corridor Kilimanjaro is a snow-covered mountain 19,710 feet high, and is said to be the highest mountain in Africa. Close to the western summit there is the dried and frozen carcass of a leopard. No one has explained what the leopard was seeking at that altitude. -- Ernest Hemingway, The Snows of Kilimanjaro It's March, but a big snow has fallen in the U.S. Northeast for perhaps the first time this winter. What's going on in...

Insects Offer Clues To Ancient Climate Variability 10,000
2011-11-15 11:55:51

An analysis of the remains of ancient midges — tiny non-biting insects closely related to mosquitoes — opens a new window on the past with a detailed view of the surprising regional variability that accompanied climate warming during the early Holocene epoch, 10,000 to 5,500 years ago. Researchers at the University of Illinois and the University of British Columbia looked at the abundance and variety of midge larvae buried in lake sediments in Alaska. Midges are highly...

2011-11-04 21:26:32

Dr. Kevin Trenberth advocates reversing the 'null hypothesis' The debate may largely be drawn along political lines, but the human role in climate change remains one of the most controversial questions in 21st century science. Writing in WIREs Climate Change Dr Kevin Trenberth, from the National Center for Atmospheric Research, argues that the evidence for anthropogenic climate change is now so clear that the burden of proof should lie with research which seeks to disprove the human role....

2011-10-28 04:20:35

New NSF grants seek to improve predictions of climate change and how it will affect Earth's future What will Earth's climate be like in a decade--or sooner? And what will it be like where you live and around the globe? National Science Foundation (NSF)-funded scientists are working to find answers. NSF and other federal agencies recently awarded more than $38 million to study the consequences of climate variability and change. The awards, made through the interagency Decadal and...

2011-09-12 11:16:15

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 the best ever – predicting climate up to 16 months in advance, nearly twice the length of time previously achieved by climate scientists. Forecasts of climate are much more general than short-term weather forecasts; they do not predict precise temperatures in specific cities, but they still may...

2011-02-18 09:58:25

Siberia's Lake Baikal, the world's oldest, deepest, and largest freshwater lake, has provided scientists with insight into the ways that climate change affects water temperature, which in turn affects life in the lake. The study was published in the journal PLoS ONE on Feb. 16. "Lake Baikal has the greatest biodiversity of any lake in the world," explained co-author Stephanie Hampton, deputy director of UC Santa Barbara's National Center for Ecological Analysis & Synthesis (NCEAS). "And,...

2011-02-13 08:26:12

Tiny organisms preserved in marine sediments hold clues about Arctic climate variation during an ancient episode of greenhouse warming. Based on reconstructions of Arctic climate variability in the greenhouse world of the Late Cretaceous, Southampton scientists have concluded that man-made global warming probably would not greatly change the climatic influence associated with natural modes of inter-annual climate variability such as the  El Niño "“ Southern...

2009-08-27 14:55:00

Our sun does not radiate evenly. The best known example of radiation fluctuations is the famous 11-year cycle of sun spots. Nobody denies its influence on the natural climate variability, but climate models have, to-date, not been able to satisfactorily reconstruct its impact on climate activity.Researchers from the USA and from Germany have now, for the first time, successfully simulated, in detail, the complex interaction between solar radiation, atmosphere, and the ocean. As the scientific...

2009-07-16 11:35:00

Establishing a key link between the solar cycle and global climate, research led by scientists at the National Science Foundation (NSF)-funded National Center for Atmospheric Research (NCAR) in Boulder, Colo., shows that maximum solar activity and its aftermath have impacts on Earth that resemble La Niña and El Niño events in the tropical Pacific Ocean.The research may pave the way toward predictions of temperature and precipitation patterns at...

2009-05-07 10:02:18

U.S. scientists say people denying global warming due to short-term periods of cooling don't understand the statistical insignificance of such periods. David Easterling of the National Climatic Data Center in Asheville, N.C., and Michael Wehner of the Lawrence Berkeley National Laboratory in Berkeley, Calif., said some Web sites and media articles have noted the average global temperature has not risen since 1998 and cite that as evidence against anthropogenic, or human-caused, global...

Word of the Day
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.