Global warming may lead to heavier rainstorms in futureSeptember 28th, 2009 WASHINGTON - A new study by researchers at MIT and Caltech has predicted that global warming may lead to heavier rainstorms in the future. Previous studies have shown that average annual precipitation will increase in both the deep tropics and in temperate zones, but will decrease in the subtropics.
Previously unknown mode of energy transfer from solar wind to Earth's magnetosphere foundSeptember 11th, 2009 WASHINGTON - Atmospheric scientists from the UCLA (University of California, Los Angeles) have discovered a previously unknown basic mode of energy transfer from the solar wind to the Earth's magnetosphere, a finding that could improve the safety and reliability of spacecraft that operate in the upper atmosphere. "It's like something else is heating the atmosphere besides the sun.
Solar activity has big impact on earth's climateJuly 18th, 2009 WASHINGTON - A high in solar activity impacts the earth in a way that resembles the devastating El Nio, releasing more energy than a million Hiroshima bombs, according to a new study. The study shows that as the sun reaches maximum activity, it heats cloud-free parts of the Pacific Ocean enough to increase evaporation, intensify tropical rainfall and the trade winds, and cool the eastern tropical Pacific.
Molecule that eats carbon dioxide may fight global warmingJuly 16th, 2009 WASHINGTON - The accidental discovery of a bowl-shaped molecule that pulls carbon dioxide out of the air paves the way for exciting new possibilities to deal with global warming. These possibilities include genetically engineering microbes to manufacture those carbon dioxide "catchers", said J.A.
Scientists' best predictions about global warming might be incorrectJuly 15th, 2009 WASHINGTON - A new study has suggested that scientists' best predictions about global warming might be incorrect. The study found that climate models explain only about half of the heating that occurred during a well-documented period of rapid global warming in Earth's ancient past.
Sulfate particles enhance climate warming properties of atmospheric sootJune 30th, 2009 WASHINGTON - A new study has found that particles of sulfate, thought to be holding climate change in check by reflecting sunlight, instead enhances warming when combined with airborne soot. Recent atmospheric models have ranked soot, also called black carbon, second only to carbon dioxide in potential for atmospheric warming.
Global sunscreen might cool Earth, but it won't save coralsJune 17th, 2009 Washington, June 17 (ANI): A new study has determined that though an artificially 'geoengineered' global sunscreen would lower the planet's temperature by a few degrees, it won't stop the acidification of the world oceans that threatens coral reefs and other marine life. The culprit is atmospheric carbon dioxide (CO2), which even in a cooler globe will continue to be absorbed by seawater, creating acidic conditions.
Solar activity in 2013 may register lowest peak since 1920sJune 13th, 2009 WASHINGTON - Estimates indicate that solar activity will peak in 2013, but it would be the lowest peak recorded since the 1920s. The sun was expected to hit a low in 2008 as part of its normal 11-year cycle of activity.
Scientists find direct relationship between CO2 emissions and global warmingJune 11th, 2009 WASHINGTON - In a new study, a team of scientists has found a direct relationship between carbon dioxide (CO2) emissions and global warming. The study was done by Damon Matthews, a professor in Concordia University's Department of Geography, Planning and the Environment, along with colleagues from Victoria and the UK.
Changes in the Sun don't cause global warmingMay 12th, 2009 WASHINGTON - In a new study, scientists have developed a model which has determined that changes in the sun are not causing global warming. The study was carried out by Carnegie Mellon University's Peter Adams, along with Jeff Pierce from Dalhousie University in Halifax, UK.
Ashley Judd, TV host Jeff Corwin call on Congress to help wildlife survive global warmingApril 23rd, 2009 Ashley Judd urges Congress to fight global warmingWASHINGTON — Actress Ashley Judd and TV personality Jeff Corwin are urging Congress to spend $7 billion a year to help safeguard America's wildlife from the impact of global warming. Judd is a longtime environmental activist.
Climate change will set back ozone layer recovery: NASAApril 11th, 2009 WASHINGTON - Global warming will set back the recovery of the ozone layer of the earth's atmosphere, warns a NASA study. Previous studies have shown that while the build up of greenhouse gases makes it warmer in the troposphere, up to 10 km high from sea level, these gases actually cool the upper stratosphere, between 30 to 50 km high.
Aerosols play a key role in atmospheric warming in Arctic
1April 9th, 2009 WASHINGTON - A new research by NASA scientists has suggested that much of the atmospheric warming observed in the Arctic since 1976 may be due to changes in tiny airborne particles called aerosols. Emitted by natural and human sources, aerosols can directly influence climate by reflecting or absorbing the sun's radiation.
Rising climate warning affecting stability of West Antarctic Ice SheetMarch 19th, 2009 WASHINGTON - New evidence has emerged which determines that even a slight rise in atmospheric concentrations of carbon dioxide, one of the gases that drives global warming, affects the stability of the West Antarctic Ice Sheet (WAIS). The massive WAIS covers the continent on the Pacific side of the Transantarctic Mountains.
Atmospheric 'sunshade' could reduce solar power generationMarch 12th, 2009 WASHINGTON - A new study has suggested that the concept of delaying global warming by adding particles into the upper atmosphere to cool the climate could unintentionally reduce peak electricity generated by large solar power plants by as much as one-fifth. The study was conducted by researchers at the National Oceanic and Atmospheric Administration (NOAA).
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