07.05.2010
Whatever Happened to the Hole in the Ozone Layer?Three British scientists shocked the world when they revealed on May 16th, 1985 - 25 years ago - that aerosol chemicals, among other factors, had torn a hole in the ozone layer over the South Pole. Today, the size of the hole has stabilized, thanks to decades of aerosol-banning legislation. But, scientists warn, some danger still remains. Автор: Стюарт Фокс
Shows: 312
25.03.2010
Soils emitting more carbon dioxideSoils around the globe have increased their emissions of carbon dioxide over the past few decades, according to an analysis of 439 studies.
Автор:
Janet Fang Shows: 121
03.02.2010
Trees Growing Faster as Planet WarmsTrees in the Eastern United States are growing faster than they have in the last two centuries in response to Earth's warming climate, a new study finds.
Shows: 226
27.01.2010
Ozone Hole Healing Could Cause Further Climate WarmingThe hole in the ozone layer is now steadily closing, but its repair could actually increase warming in the southern hemisphere, according to scientists at the University of Leeds.
Shows: 414
26.01.2010
I will not go, says climate chief UN climate science body's chief Rajendra Pachauri says he will not resign after an error on glacier melt appeared in a key report.
Shows: 441
21.01.2010
The real holes in climate science Like any other field, research on climate change has some fundamental gaps, although not the ones typically claimed by sceptics. Quirin Schiermeier takes a hard look at some of the biggest problem areas.
Shows: 204
30.12.2009
Arctic Could Face Warmer and Ice-Free Conditions
There is increased evidence that the Arctic could face seasonally ice-free conditions and much warmer temperatures in the future.
Scientists documented evidence that the Arctic Ocean and Nordic Seas were too warm to support summer sea ice during the mid-Pliocene warm period (3.3 to 3 million years ago). This period is characterized by warm temperatures similar to those projected for the end of this century, and is used as an analog to understand future conditions.
Shows: 277
28.12.2009
Warming has already boosted insect breeding Museum records, publications suggest extra generations at same time as temperature increases Shows: 292
25.12.2009
Scientists Map Speed of Climate Change for Different EcosystemsFrom beetles to barnacles, pikas to pine warblers, many species are already on the move in response to shifting climate regimes. But how fast will they -- and their habitats -- have to move to keep pace with global climate change over the next century? In a new study, a team of scientists including Dr. Healy Hamilton from the California Academy of Sciences have calculated that on average, ecosystems will need to shift about 0.42 kilometers per year (about a quarter mile per year) to keep pace with changing temperatures across the globe.
Shows: 263
22.12.2009
In Copenhagen, a Last-Minute Deal That Satisfies FewThe United Nations climate talks that seemed headed for sure disaster were saved from utter collapse late Friday night in Copenhagen, after leaders from the U.S., India, Brazil, South Africa and China came to an agreement to combat global warming. The deal contained no specifics on emissions cuts, but it did commit the countries to look to keep global warming at 2°C or less and to promise $30 billion in funding to battle climate change by 2012.
Shows: 252
16.12.2009
Satellites beam in biomass estimatesWhatever agreement emerges from the climate meeting in Copenhagen, many expect that it will include a mechanism allowing rich nations to offset their emissions by paying poorer countries to protect their forests — and the carbon they contain. But just how much carbon is at stake? Researchers at the meeting have given their best answer yet: the first satellite-based estimates of the biomass contained in the world's tropical forests.
Shows: 310
11.12.2009
Do Rich Nations Owe Poor Ones a Climate Debt?In two decades of climate change negotiations, a deep divide has remained between wealthy nations and developing ones, each side insisting the other move first to lower carbon emissions and curb the effects of global warming.
Shows: 247
10.12.2009
Old hay and Alpine ibex horns reveal how grasslands respond to climate changeHow do plant ecosystems react to rising concentrations of the greenhouse gas CO2 in the atmosphere over the long term? This fundamental question is becoming increasingly pressing in light of global climate change. Researchers from the Chair of Grassland Science at the Technische Universitaet Muenchen (TUM) have now – for the first time worldwide – taken up this issue for grasslands. The scientists found their answers in two unlikely places: in horns of Alpine ibex from Switzerland and in 150-year-old hay from England.
Shows: 229
08.12.2009
Earth More Sensitive to Carbon Dioxide Than Previously ThoughtIn the long term, the Earth's temperature may be 30-50% more sensitive to atmospheric carbon dioxide than has previously been estimated, reports a new study published in Nature Geoscience.
Shows: 331
07.12.2009
As Climate Meeting Starts, a Revival of SkepticismJust two years ago, a United Nations panel that synthesizes the work of hundreds of climatologists around the world called the evidence for global warming “unequivocal.”
Shows: 251
02.12.2009
In Carbon Dioxide-Rich Environment, Some Ocean Dwellers Increase Shell Production In a striking finding that raises new questions about carbon dioxide's (CO2) impact on marine life, Woods Hole Oceanographic Institution (WHOI) scientists report that some shell-building creatures -- such as crabs, shrimp and lobsters -- unexpectedly build more shell when exposed to ocean acidification caused by elevated levels of atmospheric carbon dioxide (CO2).
Shows: 294
01.12.2009
How Can Humanity Avoid or Reverse the Dangers Posed by a Warming Climate?With greenhouse gas emissions continuing to rise, strong efforts will be required to reverse global warming
Wetlands from Bangladesh to Florida submerged. Drought and devastating heat in important granaries such as the Yangtze floodplain in China or Ukraine. Rains that come too often or too hard in India or the U.S. Northeast. The list of potentially devastating impacts from climate change is a long one.
Shows: 301
Wetlands from Bangladesh to Florida submerged. Drought and devastating heat in important granaries such as the Yangtze floodplain in China or Ukraine. Rains that come too often or too hard in India or the U.S. Northeast. The list of potentially devastating impacts from climate change is a long one.
27.11.2009
NASA Satellites Detect Unexpected Ice Loss in East AntarcticaUsing gravity measurement data from the NASA/German Aerospace Center's Gravity Recovery and Climate Experiment (GRACE) mission, a team of scientists from the University of Texas at Austin has found that the East Antarctic ice sheet-home to about 90 percent of Earth's solid fresh water and previously considered stable-may have begun to lose ice.
26.11.2009
African conflicts spurred by warming Africa is poised to experience a surge in civil wars, causing nearly 400,000 additional battle deaths by 2030 – all as a direct result of rising temperatures. This bold prediction is one of the most alarming results yet to emerge from attempts to discover how climate change will affect patterns of human conflict. It is already proving controversial.
Shows: 949
25.11.2009
Warmer Means Windier on Lake Superior, World's Biggest Freshwater LakeRising water temperatures are kicking up more powerful winds on Lake Superior, with consequences for currents, biological cycles, pollution and more on the world's largest (by surface area) freshwater lake and its smaller brethren.
Since 1985, surface water temperatures measured by lake buoys have climbed 1.2 degrees per decade, about 15 percent faster than the air above the lake and twice as fast as warming over nearby land.
Shows: 512
Since 1985, surface water temperatures measured by lake buoys have climbed 1.2 degrees per decade, about 15 percent faster than the air above the lake and twice as fast as warming over nearby land.
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Автор всё хорошо подметил.
added 20.07.2010 18:14:09to article: Про майбутнє української науки
Рішення ВР знову базоване на невігластві і короткій памяті. Всі забули, що попереднє рішення про 12-...
added 15.07.2010 14:53:38to article: ВР скасувала 12-річне навчання
Дуже розумне рішення Д.Табачника. Не очікувала таких змін. Так тримати!
added 08.07.2010 15:49:51to article: Міносвіти змінило правила присвоєння вчених звань доцента і професора