BlogArena

General blog about anything and everything of everyday's life.

16. Jun 2019

November 5, 2014
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NASA Mission Provides Its First Look at Martian Upper Atmosphere

NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft has provided scientists their first look at a storm of energetic solar particles at Mars, produced unprecedented ultraviolet images of the tenuous oxygen, hydrogen, and carbon coronas surrounding the Red Planet, and … Continue reading

February 7, 2014
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Yale study: Forest emissions, wildfires explain why ancient Earth was so hot

The release of volatile organic compounds from Earth’s forests and smoke from wildfires 3 million years ago had a far greater impact on global warming than ancient atmospheric levels of carbon dioxide, a new Yale study finds. The research provides … Continue reading

July 20, 2013
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Berkeley Lab Confirms Thirdhand Smoke Causes DNA Damage

A study led by researchers from Lawrence Berkeley National Laboratory has found for the first time that thirdhand smoke—the noxious residue that clings to virtually all surfaces long after the secondhand smoke from a cigarette has cleared out—causes significant genetic … Continue reading

January 17, 2013
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NASA Ozone Study May Benefit Air Standards, Climate

PASADENA, Calif. – A new NASA-led study finds that when it comes to combating global warming caused by emissions of ozone-forming chemicals, location matters. Ozone is both a major air pollutant with known adverse health effects and a greenhouse gas … Continue reading

October 13, 2012
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Freezing Electrons in Flight

Using the world’s fastest laser pulses, which can freeze the ultrafast motion of electrons and atoms, UA physicists have caught the action of molecules breaking apart and electrons getting knocked out of atoms. Their research helps us better understand molecular … Continue reading

April 22, 2012
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Study Finds Surprising Arctic Methane Emission Source

The fragile and rapidly changing Arctic region is home to large reservoirs of methane, a potent greenhouse gas. As Earth’s climate warms, the methane, frozen in reservoirs stored in Arctic tundra soils or marine sediments, is vulnerable to being released … Continue reading

March 4, 2012
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NASA Finds Sea Ice Driving Arctic Air Pollutants

PASADENA, Calif. – Drastic reductions in Arctic sea ice in the last decade may be intensifying the chemical release of bromine into the atmosphere, resulting in ground-level ozone depletion and the deposit of toxic mercury in the Arctic, according to … Continue reading

December 21, 2010
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Global Rivers Emit Three Times IPCC Estimates of Greenhouse Gas Nitrous Oxide

*Waterways receiving nitrogen from human activities are significant source* What goes in must come out, a truism that now may be applied to global river networks. Human-caused nitrogen loading to river networks is a potentially important source of nitrous oxide … Continue reading