News tagged with atmospheric gas
Researchers find future temperatures could exceed livable limits
Reasonable worst-case scenarios for global warming could lead to deadly temperatures for humans in coming centuries, according to research findings from Purdue University and the University of New South Wales, ...
Space & Earth / Earth Sciences
May 04, 2010 |
3.5 / 5 (55) |
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Hydrocarbons in the deep Earth?
The oil and gas that fuels our homes and cars started out as living organisms that died, were compressed, and heated under heavy layers of sediments in the Earth's crust. Scientists have debated for years ...
Space & Earth / Earth Sciences
Jul 26, 2009 |
4.3 / 5 (43) |
27
Life on Mars theory boosted by new methane study
Scientists have ruled out the possibility that methane is delivered to Mars by meteorites, raising fresh hopes that the gas might be generated by life on the red planet, in research published tomorrow in Earth an ...
Space & Earth / Space Exploration
Dec 08, 2009 |
4.9 / 5 (32) |
11
Extinction risk to plant biodiversity may occur at lower levels of atmospheric CO2 than previously considered
(PhysOrg.com) -- Scientists have traced a sudden collapse in plant biodiversity in ancient Greenland, some 200 million years ago, to a relatively small rise in atmospheric carbon dioxide which caused a rise in the Earth’s ...
Jun 29, 2009 |
4.3 / 5 (34) |
13
Global warming likely to be amplified by slow changes to Earth systems
Researchers studying a period of high carbon dioxide levels and warm climate several million years ago have concluded that slow changes such as melting ice sheets amplified the initial warming caused by greenhouse ...
Space & Earth / Earth Sciences
Dec 20, 2009 |
2.8 / 5 (49) |
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Study: Arctic seabed methane stores destabilizing, venting
A section of the Arctic Ocean seafloor that holds vast stores of frozen methane is showing signs of instability and widespread venting of the powerful greenhouse gas, according to the findings of an international research ...
Space & Earth / Earth Sciences
Mar 04, 2010 |
4.5 / 5 (31) |
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New Images Indicate Object Hits Jupiter
(PhysOrg.com) -- Scientists have found evidence that another object has bombarded Jupiter, exactly 15 years after the first impacts by the comet Shoemaker-Levy 9.
Space & Earth / Space Exploration
Jul 21, 2009 |
4.8 / 5 (24) |
11
New technique helps search for another Earth (Update)
The quest to find another world that sustains life has been boosted by a technique that should let less expensive ground-based telescopes join the search, a study said on Wednesday.
Feb 03, 2010 |
4.9 / 5 (23) |
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Long debate ended over cause, demise of ice ages -- may also help predict future
Researchers have largely put to rest a long debate on the underlying mechanism that has caused periodic ice ages on Earth for the past 2.5 million years - they are ultimately linked to slight shifts in solar radiation caused ...
Space & Earth / Earth Sciences
Aug 06, 2009 |
4.5 / 5 (24) |
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Arctic climate may be more sensitive to warming than thought, says new study
A new study shows the Arctic climate system may be more sensitive to greenhouse warming than previously thought, and that current levels of Earth's atmospheric carbon dioxide may be high enough to bring about ...
Space & Earth / Earth Sciences
Jun 29, 2010 |
3.8 / 5 (27) |
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Methane may be answer to 56-million-year question
(PhysOrg.com) -- The release of massive amounts of carbon from methane hydrate frozen under the seafloor 56 million years ago has been linked to the greatest change in global climate since a dinosaur-killing ...
Space & Earth / Earth Sciences
Nov 09, 2011 |
4.9 / 5 (21) |
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Drought in SW Australia linked to snowfall in Antarctica
A drought that has gripped the southwestern corner of Australia since the 1970s is linked with higher snowfall in East Antarctica, a phenomenon that may be rooted in global warming, scientists reported on ...
Space & Earth / Earth Sciences
Feb 07, 2010 |
3.8 / 5 (26) |
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Did a nickel famine trigger the 'Great Oxidation Event'?
(PhysOrg.com) -- The Earth's original atmosphere held very little oxygen. This began to change around 2.4 billion years ago when oxygen levels increased dramatically during what scientists call the "Great ...
Space & Earth / Earth Sciences
Apr 08, 2009 |
4.5 / 5 (21) |
3
Astronomers Detect Sodium Gas Ejected by Lunar Impact
(PhysOrg.com) -- Boston University astronomers announced today observations of a cloud of sodium gas ejected from the Moon’s surface as a result of the NASA impact experiment that was part of its Lunar Reconnaissance ...
Space & Earth / Space Exploration
Oct 12, 2009 |
4.4 / 5 (21) |
10
Researcher unravels one of geology's great mysteries
Danish researcher has solved one of the great mysteries of our geological past: Why the Earth's surface was not one big lump of ice four billion years ago when sun radiation was much weaker than today. Scientists have presumed ...
Space & Earth / Earth Sciences
Mar 31, 2010 |
4 / 5 (23) |
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