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Space & Earth science / Earth Sciences news 1234

Permafrost threatened by rapid retreat of Arctic sea ice, study finds

June 10, 2008 | User rating: 3.7 / 5 after 16 vote(s) | User comments: 4

The rate of climate warming over northern Alaska, Canada, and Russia could more than triple during periods of rapid sea ice loss, according to a new study led by the National Center for Atmospheric Research (NCAR). The findings ...


How intense will storms get? New model helps answer question

July 08, 2008 | User rating: 3.2 / 5 after 42 vote(s) | User comments: 4

A new mathematical model indicates that dust devils, water spouts, tornadoes, hurricanes and cyclones are all born of the same mechanism and will intensify as climate change warms the Earth's surface.


Carbon dioxide did not end the last Ice Age

September 27, 2007 | User rating: 4.8 / 5 after 59 vote(s) | User comments: 3

Carbon dioxide did not cause the end of the last ice age, a new study in Science suggests, contrary to past inferences from ice core records.


Like it or not, uncertainty and climate change go hand in hand

October 25, 2007 | User rating: 2.2 / 5 after 33 vote(s) | User comments: 3

Despite decades of ever more-exacting science projecting Earth's warming climate, there remains large uncertainty about just how much warming will actually occur.


Exactly how sensitive is our climate? It may not matter...

October 26, 2007 | User rating: 4.5 / 5 after 27 vote(s) | User comments: 3

Scientists from Oxford University have suggested that climate researchers and policy makers ought to worry less about working out exactly how sensitive Earth's climate will be to a doubling of carbon dioxide ...


Exploration of lake hidden beneath Antarctica's ice sheet begins

January 16, 2008 | User rating: 4.5 / 5 after 31 vote(s) | User comments: 3

A four-man science team led by British Antarctic Survey’s (BAS) Dr Andy Smith has begun exploring an ancient lake hidden deep beneath Antarctica’s ice sheet. The lake – the size of Lake Windermere (UK) – could yield vital ...


Research reveals secret to interaction between Earth's core and mantle

November 28, 2007 | User rating: 4.6 / 5 after 38 vote(s) | User comments: 3

Leslie Hayden’s research into deep Earth interactions has led to some important findings, particularly for someone so new to the field, and the scientific world is paying attention. Hayden, a graduate student at Rensselaer ...


Study may solve age-old mystery of missing chemicals from Earth's mantle

December 05, 2007 | User rating: 4 / 5 after 27 vote(s) | User comments: 3

Observations about the early formation of Earth may answer an age-old question about why the planet’s mantle is missing some of the matter that should be present, according to UBC geophysicist John Hernlund.


Computer simulations strongly support new theory of Earth's core

February 08, 2008 | User rating: 4.4 / 5 after 64 vote(s) | User comments: 3

Swedish researchers present in today’s Web edition of the journal Science evidence that their theory about the core of the earth is correct. Among other applications, the findings may be of significance ...


Seismic images show dinosaur-killing meteor made bigger splash

January 23, 2008 | User rating: 4.4 / 5 after 36 vote(s) | User comments: 3

The most detailed three-dimensional seismic images yet of the Chicxulub crater, a mostly submerged and buried impact crater on the Mexico coast, may modify a theory explaining the extinction of 70 percent of life on Earth ...


Researchers find that humans are cause of diminishing water flow in the West

January 31, 2008 | User rating: 3.4 / 5 after 26 vote(s) | User comments: 3

The Rocky Mountains have warmed by 2 degrees Fahrenheit. The snowpack in the Sierras has dwindled by 20 percent and the temperatures there have heated up by 1.7 degrees Fahrenheit.


Wind patterns could mask effects of global warming in ocean

February 07, 2008 | User rating: 3.4 / 5 after 19 vote(s) | User comments: 3

Scientists at the University of Liverpool have found that natural variability in the earth’s atmosphere could be masking the overall effect of global warming in the North Atlantic Ocean. The research is published in journal ...


Earth's orbit creates more than a leap year

February 08, 2008 | User rating: 4.6 / 5 after 35 vote(s) | User comments: 3

The Earth's orbital behaviors are responsible for more than just presenting us with a leap year every four years. According to Michael E. Wysession, Ph.D., associate professor of earth and planetary sciences ...


Past greenhouse warming events provide clues to what the future may hold

February 15, 2008 | User rating: 4.1 / 5 after 24 vote(s) | User comments: 3

If carbon dioxide emissions from the burning of fossil fuels continue on a "business-as-usual" trajectory, humans will have added about 5 trillion metric tons of carbon to the atmosphere by the year 2400. ...


Geologists solve ancient mystery

February 19, 2008 | User rating: 4.5 / 5 after 34 vote(s) | User comments: 3

Geologists at the University of Leicester have solved a puzzle found in rocks half a billion years old.


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