(Phys.org) —Methane, a key greenhouse gas, has more than doubled in volume in Earth's atmosphere since 1750. Its increase is believed to be a leading contributor to climate change. But where is the methane coming from? ...
Environment
Feb 11, 2014
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(Phys.org)—Research that sheds new light on the microscopic chemical physics driving one of the most important reaction sequences in atmospheric chemistry is published in Science today by Dr David Glowacki from the University ...
General Physics
Sep 3, 2012
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(PhysOrg.com) -- A visit to your local graveyard can provide not only a history lesson, but a science lesson as well. Historians know that gravestones can reflect the lives of people whose memories are lost in time, and ...
Earth Sciences
Dec 8, 2009
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By the end of 2018, NOAA's atmospheric observatory at Mauna Loa recorded the fourth-highest annual growth in the concentration of atmospheric carbon dioxide (CO2) in 60 years of record-keeping.
Earth Sciences
Mar 25, 2019
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A team of U.S. ice-coring scientists and engineers in Antarctica, funded by the National Science Foundation (NSF), have recovered from the ice sheet a record of past climate and greenhouse gases in the atmosphere that extends ...
Earth Sciences
Feb 5, 2013
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The rain band near the equator that determines the supply of freshwater to nearly a billion people throughout the tropics and subtropics has been creeping north for more than 300 years, probably because of a warmer world, ...
Earth Sciences
Jul 1, 2009
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(Phys.org)—The Earth's atmosphere holds far less xenon than chondritic meteorites, and researchers have sought for years to explain why. Now, geochemists Svyatoslav Shcheka and Hans Keppler of Bayerisches Geoinstitut, Universität ...
Extreme precipitation in the tropics comes in many forms: thunderstorm complexes, flood-inducing monsoons and wide-sweeping cyclones like the recent Hurricane Isaac.
Earth Sciences
Sep 17, 2012
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In ancient Earth history, the sun burned as much as 30 percent dimmer than it does now. Theoretically that should have encased the planet in ice, but there is geologic evidence for rivers and ocean sediments between 2 billion ...
Earth Sciences
Mar 28, 2012
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Scientists have shed new light on the "self-cleaning" capacity of the atmosphere.
Earth Sciences
Jan 18, 2023
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