(PhysOrg.com) -- Mars today is a world of cold and lonely deserts, apparently without life of any kind, at least on the surface. Worse still, it looks like Mars has been cold and dry for billions of years, with an atmosphere ...
Space Exploration
Jan 15, 2009
9
1
During the early 2000s, environmental scientists studying methane emissions noticed something unexpected: the global concentrations of atmospheric methane (CH4)—which had increased for decades, driven by methane emissions ...
Environment
Apr 17, 2017
0
412
Scientists concerned that global warming may release huge stores of methane from reservoirs beneath Arctic tundra and deposits of marine hydrates - a theory known as the "clathrate gun" hypothesis - have turned to geologic ...
Environment
Aug 23, 2017
7
471
Observations over the last decade suggest that methane clouds form briefly over Mars during the summer months. The discovery has left many scientists scratching their heads, since it doesn't fit into models of the martian ...
Space Exploration
Sep 13, 2011
13
0
Why do some science instruments detect the gas on the Red Planet while others don't?
Planetary Sciences
Jun 30, 2021
2
400
(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 Oxidation Event." ...
Earth Sciences
Apr 8, 2009
3
0
(Phys.org) -- 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 ...
Earth Sciences
Apr 22, 2012
39
0
In addition to melting icecaps and imperiled wildlife, a significant concern among scientists is that higher Arctic temperatures brought about by climate change could result in the release of massive amounts of carbon locked ...
Earth Sciences
Aug 17, 2015
15
276
(Phys.org)—In 1986, when Voyager swept past Uranus, the probe's portraits of the planet were "notoriously bland," disappointing scientists, yielding few new details of the planet and its atmosphere, and giving it a reputation ...
Astronomy
Oct 17, 2012
10
0
Satellite readings show that atmospheric methane and carbon dioxide are continuing to increase despite global efforts to reduce emissions.
Environment
May 13, 2016
0
244
