News tagged with earths oceanic
Study: Earth more sensitive to carbon dioxide than previously thought
In the long term, the Earth's temperature may be 30-50% more sensitive to atmospheric carbon dioxide than has previously been estimated, reports a new study published in Nature Geoscience this week.
Space & Earth / Earth Sciences
Dec 06, 2009 |
3.1 / 5 (53) |
91
Geologist discovers pattern in Earth's long-term climate record
In an analysis of the past 1.2 million years, UC Santa Barbara geologist Lorraine Lisiecki discovered a pattern that connects the regular changes of the Earth's orbital cycle to changes in the Earth's climate. ...
Space & Earth / Earth Sciences
Apr 06, 2010 |
4.6 / 5 (30) |
24
|
The Earth's magnetic field remains a charged mystery
400 years of discussion and we’re still not sure what creates the Earth’s magnetic field, and thus the magnetosphere, despite the importance of the latter as the only buffer between us and deadly solar wind ...
Space & Earth / Earth Sciences
Jun 15, 2009 |
4.7 / 5 (26) |
20
A water ocean on Titan?
Oddities in the rotation of Saturn's largest moon Titan might add to growing evidence that it harbors an underground ocean, researchers suggest.
Space & Earth / Space Exploration
May 05, 2011 |
5 / 5 (23) |
57
|
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) |
63
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) |
18
|
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
The rise of oxygen caused Earth's earliest ice age
(PhysOrg.com) -- Geologists may have uncovered the answer to an age-old question - an ice-age-old question, that is. It appears that Earth's earliest ice ages may have been due to the rise of oxygen in Earth's ...
Space & Earth / Earth Sciences
May 07, 2009 |
4.6 / 5 (20) |
6
Great Unconformity: Evidence for a geologic trigger of the Cambrian explosion
(Phys.org) -- The oceans teemed with life 600 million years ago, but the simple, soft-bodied creatures would have been hardly recognizable as the ancestors of nearly all animals on Earth today.
Space & Earth / Earth Sciences
Apr 18, 2012 |
4.8 / 5 (19) |
2
|
What caused a giant arrow-shaped cloud on Saturn's moon Titan?
(PhysOrg.com) -- Why does Titan, Saturn's largest moon, have what looks like an enormous white arrow about the size of Texas on its surface?
Space & Earth / Space Exploration
Aug 16, 2011 |
4.5 / 5 (20) |
36
|
Oceans in distress foreshadow mass extinction
Pollution and global warming are pushing the world's oceans to the brink of a mass extinction of marine life unseen for tens of millions of years, a consortium of scientists warned Monday.
Jun 20, 2011 |
4.3 / 5 (20) |
22
First-of-its-kind study finds alarming increase in flow of water into oceans
(PhysOrg.com) -- Freshwater is flowing into Earth's oceans in greater amounts every year, a team of researchers has found, thanks to more frequent and extreme storms linked to global warming. All told, 18 ...
Space & Earth / Earth Sciences
Oct 04, 2010 |
4 / 5 (20) |
16
|
Phosphorus identified as the missing link in evolution of animals
(PhysOrg.com) -- A University of Alberta geomicrobiologist and his PhD student are part of a research team that has identified phosphorus as the mystery ingredient that pushed oxygen levels in the oceans high ...
Space & Earth / Earth Sciences
Oct 31, 2010 |
4.6 / 5 (17) |
1
|
Busy microbial world discovered in deepest ocean crust ever explored
The first study to ever explore biological activity in the deepest layer of ocean crust has found bacteria with a remarkable range of capabilities, including eating hydrocarbons and natural gas, and "fixing" ...
Space & Earth / Earth Sciences
Nov 19, 2010 |
4.6 / 5 (17) |
2
|
Two More Earth's Chandler Wobble Jumps Revealed, Last in 2005
(PhysOrg.com) -- The Chandler Wobble is a small variation in the rotation of the Earth on its axis. It has been known for some time that the phase of the Chandler Wobble jumped by 180 degrees in the 1920s, ...
Sep 02, 2009 |
4.6 / 5 (17) |
5
