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ScienceDaily: Global Warming News
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Global Warming Research. Learn about the causes and effects of global warming. Consider possible global warming solutions. Read predictions of rising sea levels, coral reef bleaching and mass extinctions climate change may cause.
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Glacial Erosion Changes Mountain Responses To Plate Tectonics
Intense glacial erosion has not only carved the surface of the highest coastal mountain range on earth, the spectacular St. Elias range in Alaska, but has elicited a structural response from deep within the mountain.
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Snow In The Arctic: An Ingredient In A Surprising Chemical Cocktail
In the Arctic in spring, the snow cover gives off nitrogen oxides. This phenomenon, the extent of which had not been previously realized, is the source of one third of the nitrates present in the Arctic atmosphere, according to researchers. Scientists made a quantitative study of the origin and evolution of nitrogen compounds in the Arctic atmosphere, in order to understand their environmental impact on this region.
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Burying Greenhouse Gases: New Tool Could Aid Safe Underground Storage Of Carbon Dioxide
To prevent global warming, researchers and policymakers are exploring a variety of options to significantly cut the amount of carbon dioxide that reaches the atmosphere. One possible approach involves capturing greenhouse gases such as carbon dioxide at the source, then injecting them underground. Now engineers have come up with a new software tool to determine how much carbon dioxide can be sequestered safely in geological formations.
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Climate Change May Boost Exposures To Harmful Pollutants
A review of studies projecting the impact of climate change on air quality, including effects on morbidity and mortality, indicates that adverse health effects will likely rise with changes in pollutant creation, transport, dispersion, and deposition. However, reducing greenhouse gas emissions could go far in mitigating adverse effects.
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How Global Warming Will Affect U.S. Beaches, Coastline
Scientists are finding that sea level rise will have different consequences in different places but that they will be profound on virtually all coastlines. Land in some areas of the Atlantic and Gulf coasts of the United States will simply be underwater. On the West Coast, with its different topography and different climate regimes, problems will likely play out differently. The scientists' most recent conclusions, even when conservative scenarios are involved, suggest that coastal development, popular beaches, vital estuaries, and even California's supply of fresh water could be severely impacted by a combination of natural and human-made forces.
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Urgent Action On International Coral Reef Crisis Urged
Coral reef scientists and policy makers from the world's most prominent coral reef nations are meeting in Australia this week to develop urgent action plans to rescue the world's richest center of marine biodiversity from gradual decline.
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New Life Beneath Sea And Ice
Scientists have long known that life can exist in some very extreme environments. But Earth continues to surprise us.
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Second Warmest October For Global Temperatures, NOAA Says
The combined global land and ocean surface average temperature for October 2008 was the second warmest since records began in 1880, according to a preliminary analysis by NOAA.
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Road Emissions Dominate Global Transport Emissions
The world?s car park is growing. It has become so big that the impact of emissions from today?s road traffic on the global temperature in 2100 will be six times greater than that from today?s air traffic.
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Potential Sources Of 'Rain-Making' Bacteria In The Atmosphere Identified
Scientists recently found evidence that bacteria and biological cells are the most efficient ice-forming catalysts in precipitation from locations around the globe. The formation of ice in clouds is important in the processes that lead to snow and rain. Ice-nucleating bacteria -- which have been referred to as "rain-making bacteria" -- may be significant triggers of freezing in clouds and influence the water cycle.
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Sea Level Rise Alters Chesapeake Bay's Salinity
While global-warming-induced coastal flooding moves populations inland, the changes in sea level will affect the salinity of estuaries, which influences aquatic life, fishing and recreation.
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Speeding Antarctic Glacier: Scientists Discover Another Reason For Glacial Acceleration
New satellite data have helped scientists crack the case of a speeding Antarctic glacier -- a finding that promises to help improve sea level forecasts.
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Global Warming Predictions Are Overestimated, Suggests Study On Black Carbon
A detailed analysis of black carbon -- the residue of burned organic matter -- in computer climate models suggests that those models may be overestimating global warming predictions.
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Water Vapor Confirmed As Major Player In Climate Change
Water vapor is known to be Earth's most abundant greenhouse gas, but the extent of its contribution to global warming has been debated. Using recent NASA satellite data, researchers have estimated more precisely than ever the heat-trapping effect of water in the air, validating the role of the gas as a critical component of climate change.
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Missing Radioactivity In Ice Cores Bodes Ill For Part Of Asia
When glaciologists failed to find the expected radioactive signals in the latest core they drilled from a Himalayan ice field, they knew it meant trouble for their research. But those missing markers of radiation, remnants from atomic bomb tests a half-century ago, foretell much greater threat to the half-billion or more people living downstream of that vast mountain range.
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