Daily non-political popular news in brief.
Dirty snow may warm Arctic as much as greenhouse gases
06-06-2007 · EurekAlert!The global warming debate has focused on carbon dioxide emissions, but scientists at UC Irvine have determined that a lesser-known mechanism -- dirty snow -- can explain one-third or more of the Arctic warming primarily attributed to greenhouse gases.
Read more »
Keywords: dirty, snow, warm, arctic, greenhouse, gases, gase
« Previous | Next »
Similar news on "Dirty snow may warm Arctic as much as greenhouse gases":
- Evidence of glaciation in 'super greenhouse' world
01-10-2008 · EurekAlert!
US and European scientists have found evidence that glaciers existed during the "super greenhouse" world when it was so warm that alligators lived in the Arctic.
Similar news · Read more »
- Widespread 'twilight zone' detected around clouds
05-04-2007 · EurekAlert!
There is something new under the sun that could complicate scientists' efforts to get a fix on how much the world will warm in the future. In addition to greenhouse gases, clouds, and aerosol particles that influence the temperature of the atmosphere, a new ingredient has been discovered: an extensive and previously unseen "twilight zone" of particles that represents a gradual transition from cloud droplets to dry particles.
Similar news · Read more »
- First greenhouse gas animations produced using Envisat SCIAMACHY data
03-20-2007 · European Space Agency (ESA)
Based on three years of observations from the SCIAMACHY instrument aboard ESA's Envisat, scientists have produced the first movies showing the global distribution of the most important greenhouse gases – carbon dioxide and methane – that contribute to global warming.
Similar news · Read more »
- Shift toward services industries won't end global warming
11-01-2006 · EurekAlert!
The shift toward a service-based economy won't automatically reduce the amount of greenhouse gases in the air, a University of Minnesota researcher has found. His research contradicts assumptions about global warming often preferred by some economists and national policy experts.
Similar news · Read more »
- Powerful new tool to track carbon dioxide by source
03-21-2007 · EurekAlert!
Scientists from NOAA's Earth System Research Laboratory released today a powerful new tool to monitor changes in atmospheric carbon dioxide and other greenhouse gases by region and source around the world. Called CarbonTracker, the online system will distinguish between changes in the natural carbon cycle and those occurring in fossil fuel emissions. Corporations, cities, states and nations can use CarbonTracker to assess their efforts to reduce, trade or store fossil fuel emissions.
Similar news · Read more »
- Pollution amplifies greenhouse gas warming trends to jeopardize Asian water supplies
08-01-2007 · EurekAlert!
Scientists have concluded that the global warming trend caused by the buildup of greenhouse gases is a major contributor to the melting of Himalayan and other tropical glaciers. Now a new analysis of pollution-filled "brown clouds" over south Asia by researchers at Scripps Institution of Oceanography at UC-San Diego offers hope that the region may be able to arrest some of the alarming retreat of such glaciers by reducing its air pollution.
Similar news · Read more »
- NASA, U of Colorado study shows regions of Antarctica melted in recent past
05-15-2007 · EurekAlert!
A team of NASA and University of Colorado at Boulder scientists has found clear evidence that extensive areas of snow melted in west Antarctica in January 2005 in response to warm temperatures, the most significant melt there observed using satellites during the past three decades.
Similar news · Read more »
- Arctic sea ice minimum shatters all-time record low, report University of Colorado scientists
09-20-2007 · EurekAlert!
Scientists from the University of Colorado at Boulder's National Snow and Ice Data Center said today that the extent of Arctic sea ice appears to have reached its minimum for 2007 on Sept. 16, shattering all previous lows since satellite record-keeping began nearly 30 years ago.
Similar news · Read more »
- Without its insulating ice cap, Arctic surface waters warm to as much as 5 C above average
12-12-2007 · EurekAlert!
Record-breaking amounts of ice-free water have deprived the Arctic of more of its natural "sunscreen" than ever in recent summers. The effect is so pronounced that sea surface temperatures rose to 5 C above average in one place this year, a high never before observed, says the University of Washington oceanographer who has compiled the first-ever look at average sea surface temperatures for the region.
Similar news · Read more »
- Scientists track remarkable 'breathing' in nanoporous materials
04-02-2007 · EurekAlert!
Scientists all over the world are participating in the quest of new materials with properties suitable for the environmentally friendly and economically feasible separation, recovery, and reuse of vapours and greenhouse gases. A team of scientists from France, UK and the ESRF have recently discovered an unprecedented giant and reversible swelling of nanoporous materials with exceptional properties: huge flexibility and profound selectivity.
Similar news · Read more »