News articles tagged with 'geologic'
Ancient 'hyperthermals' a guide to anticipated climate changes
— 17 Mar 2011 18:39 | EnvironmentBursts of intense global warming that have lasted tens of thousands of years have taken place more frequently throughout history than previously believe, according to evidence gathered…
Penn biologists say species accumulate on Earth at slower rates than in the past
— 30 Sep 2010 13:20 | BiologyComputational biologists at the University of Pennsylvania say that species are still accumulating on Earth but at a slower rate than in the past…
Going underground to monitor carbon dioxide
— 3 Jun 2010 13:10 | EnvironmentA technique originally, applied to monitor the flow of contaminants into shallow groundwater supplies, has been repurposed to monitor carbon dioxide pumped deep underground for storage…
Did phosphorus trigger complex evolution - and blue skies?
— 11 May 2010 05:57 | EnvironmentThe evolution of complex life forms may have gotten a jump start billions of years ago, when geologic events operating over millions of years caused large quantities of phosphorus to…
Bolstered by geological and geophysical data: Total area of Norway expanded
— 11 May 2010 03:56 | Geology and palaeontologyKnowledge acquired from a ten-year-old basic research project on geologic conditions of the oceanic crust proved invaluable in ultimately successful negotiations between the Ministry…
Deciphering the mysteries of an ancient seafloor goliath
— 10 Apr 2010 11:07 | Geology and palaeontologyThe eruptions of 'supervolcanoes' on Earth's surface have been blamed for causing mass extinctions, belching large amounts of gases and particles into the atmosphere, and re-paving…
Early Earth absorbed more sunlight - no extreme greenhouse needed to keep water wet
— 7 Apr 2010 10:32 | EnvironmentFour billion years ago, our then stripling sun radiated only 70 to 75 percent as much energy as it does today. Other things on Earth being equal, with so little energy reaching the…
How will future sea-level rise linked to climate change affect coastal areas?
— 6 Oct 2009 19:17 | EnvironmentThe anticipated sea-level rise associated with climate change, including increased storminess, over the next 100 years and the impact on the nation's low-lying coastal infrastructure…
Carnegie Mellon team makes sequestration recommendations
— 24 Jul 2009 20:06 | EnvironmentCarbon capture and sequestration (CCS) technology, which captures carbon dioxide from power plants and safely disposes of it deep underground, will not meet its full potential in the…
Scientists say that microbial mats built 3.4-billion-year-old stromatolites
— 17 Jul 2009 03:24 | Geology and palaeontologyStromatolites are dome- or column-like sedimentary rock structures that are formed in shallow water, layer by layer, over long periods of geologic time. Now, researchers from the California…