Daily non-political popular news in brief.
From icehouse to hothouse: Melting ice and rising CO2 caused climate shift
02-18-2007 · EurekAlert!Three hundred million years ago, Earth's climate shifted dramatically from icehouse to hothouse, with major environmental consequences. That shift was the result of both rising atmospheric carbon dioxide concentrations and the melting of vast ice sheets, new research by University of Michigan paleoclimatologist Christopher Poulsen shows.
Read more »
Keywords: icehouse, hothouse, melting, ice, rising, co2, caused, climate, shift
« Previous | Next »
Similar news on "From icehouse to hothouse: Melting ice and rising CO2 caused climate shift":
- Climate swings have brought great CO2 pulses up from the deep sea
05-11-2007 · EurekAlert!
A study released provides some of the first solid evidence that warming-induced changes in ocean circulation at the end of the last Ice Age caused vast quantities of ancient carbon dioxide to belch from the deep sea into the atmosphere.
Similar news · Read more »
- Appalachian Mountains, carbon dioxide caused long-ago global cooling
10-25-2006 · EurekAlert!
The rise of the Appalachian Mountains may have caused a major ice age approximately 450 million years ago, an Ohio State University study has found. The weathering of the mountains pulled carbon dioxide (CO2) from the atmosphere, causing the opposite of a greenhouse effect -- an "icehouse" effect.
Similar news · Read more »
- Lake Superior is warming faster than its local climate
05-05-2007 · Science News Online
In recent decades, the waters of Lake Superior have warmed significantly faster than have air temperatures at nearby sites onshore, a trend caused in part by a long-term decrease in the lake's winter ice cover.
Similar news · Read more »
- Melting of the Greenland ice cap may have consequences for climatic change
05-07-2007 · EurekAlert!
At the last ice age, before the great ice sheets of the Arctic Ocean began to melt, early sporadic episodes of melting of the old ice sheet which covered the British Isles had already begun to affect the circulation of the ocean currents. Based on this observation, scientists consider that the acceleration of the melting of the Greenland ice cap could play an important role in the development of climate change.
Similar news · Read more »
- Current melting of Greenland's ice mimicks 1920s-1940s event
12-09-2007 · EurekAlert!
Two researchers here spent months scouring through old expedition logs and reports, and reviewing 70-year-old maps and photos before making a surprising discovery: They found that the effects of the current warming and melting of Greenland 's glaciers that has alarmed the world's climate scientists occurred in the decades following an abrupt warming in the 1920s.
Similar news · Read more »
- A bumpy shift from ice house to greenhouse
01-04-2007 · EurekAlert!
The transition from an ice age to an ice-free planet 300 million years ago was highly unstable, marked by dips and rises in carbondioxide, extreme swings in climate and drastic effects on tropical vegetation, according to a new study.
Similar news · Read more »
- Plant a tree and save the Earth?
12-11-2006 · EurekAlert!
Can planting a tree stop the sea level from rising, the ice caps from melting and hurricanes from intensifying?
Similar news · Read more »
- 'Noah's flood' kick-started European farming
11-18-2007 · EurekAlert!
The flood believed to be behind the Noah's Ark myth kick-started European agriculture. This research paper assesses the impact of the collapse of the North American (Laurentide) Ice Sheet, 8,000 years ago. The results indicate a catastrophic rise in global sea level led to the flooding of the Black Sea and drove dramatic social change across Europe. The research team argues that, in the face of rising sea levels driven by contemporary climate change, we can learn important lessons from the past
Similar news · Read more »
- Climate change affects Southern Ocean carbon sink
05-17-2007 · EurekAlert!
The first evidence that recent climate change has weakened one the Earth's natural carbon 'sinks' is published this week in the journal Science. A four-year study by scientists from the University of East Anglia, British Antarctic Survey and the Max-Planck Institute for Biogeochemistry reveals that an increase in winds over the Southern Ocean, caused by greenhouse gases and ozone depletion, has led to a release of stored CO2 into the atmosphere and is preventing further absorption of the greenhouse gas.
Similar news · Read more »
- Climate shifts -- probability of randomness
03-09-2007 · EurekAlert!
Severe climate changes during the last ice-age could have been caused by random chaotic variations on Earth and not governed by external periodic influences from the sun. This has been shown in new calculations by a researcher at the Niels Bohr Institute, Copenhagen University.
Similar news · Read more »
