News tagged with climatic history
Earth history and evolution
In classical mythology, the cypress tree is associated with death, the underworld and eternity. Indeed, the family to which cypresses belong, is an ancient lineage of conifers, and a new study of their evolution affords a ...
May 03, 2012 |
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Diversification of land plants
Researchers have reconstructed phylogenetic relationships among all 706 families of land plants.
Apr 05, 2012 |
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Mission critical: Species explorers propose steps to map biosphere
Scientists say worldwide collections, existing experts and technology make charting 10 million species in less than 50 years achievable; a necessary step to sustain planet’s biodiversity.
Apr 02, 2012 |
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Oldest US natural history museum offers rare peek
(AP) -- The Academy of Natural Sciences has never been one to brag. Its 225,000 annual visitors may associate the nation's oldest natural history museum solely with dioramas and dinosaurs, but behind the ...
Mar 24, 2012 |
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The Earth's new water budget
Investigating the history of water on Earth is critical to understanding the planet's climate. One central question is whether Earth has always had the same amount of water on and surrounding it, the same ...
Space & Earth / Earth Sciences
Mar 05, 2012 |
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Southwest pueblo-dwellers key to modern climate policy?
Vulnerability to climate change presents policy challenges to local, state, regional, national and international entities, particularly at a time when the public and policy-makers still struggle conceptually with the complexities ...
Feb 19, 2012 |
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Controlling forest fires
Simon Fraser University statistician Rick Routledge will share his knowledge of what layers of charcoal in lake-bottom sediment can tell us about an area's forest fire history, at the world's largest science fair in Vancouver.
Feb 17, 2012 |
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Study finds fish of Antarctica threatened by climate change
A Yale-led study of the evolutionary history of Antarctic fish and their "anti-freeze" proteins illustrates how tens of millions of years ago a lineage of fish adapted to newly formed polar conditions – ...
Feb 13, 2012 |
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New record from stalagmites shows climate history in Central Asia
The climate in Central Asia, currently a semiarid region, has varied over the past 500,000 years. An accurate record of the past climate can help scientists understand current climate and better predict how the climate may ...
Space & Earth / Earth Sciences
Jan 31, 2012 |
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Greenland's pronounced glacier retreat not irreversible
In recent decades, the combined forces of climate warming and short-term variability have forced the massive glaciers that blanket Greenland into retreat, with some scientists worrying that deglaciation could become irreversible. ...
Space & Earth / Earth Sciences
Jan 31, 2012 |
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Scientists aboard Iberian coast ocean drilling expedition report early findings
(PhysOrg.com) -- Mediterranean bottom currents and the sediment deposits they leave behind offer new insights into global climate change, the opening and closing of ocean circulation gateways and locations ...
Space & Earth / Earth Sciences
Jan 24, 2012 |
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New cores from glacier in the Eastern European Alps may yield new climate clues
Researchers are beginning their analysis of what are probably the first successful ice cores drilled to bedrock from a glacier in the eastern European Alps.
Space & Earth / Earth Sciences
Jan 09, 2012 |
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Simultaneous ice melt in Antarctic and Arctic
The end of the last ice age and the processes that led to the melting of the northern and southern ice sheets supply basic information on changes in our climate. Although the maximum size of the ice sheet in the northern ...
Space & Earth / Earth Sciences
Dec 02, 2011 |
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Unravelling the causes of the Ice Age megafauna extinctions
Was it humans or climate change that caused the extinctions of the iconic Ice Age mammals (megafauna) such as the woolly rhinoceros and woolly mammoth?
Nov 04, 2011 |
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Modern ecosystems feel ancient climate change effect
Earth's animals migrate to ensure their survival in suitable conditions. This is especially true when climate cycles switch between warm and cool periods. Now researchers in Denmark and the United Kingdom ...
Oct 12, 2011 |
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