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International Expedition Investigates Climate Change, Alternative Fuels in Arctic
Biogeochemistry and geology
and geophysics scientists
have returned from Arctic
expedition exploring methane
hydrate deposits in the
... > full story
DNA 'Barcode' for Tropical Trees
In foods, soil samples or
customs checks, plant
fragments sometimes need to
be quickly identified. The
use of DNA "barcodes" to
itemize plant biodiversity
was proposed during the 1992
... > full story
Rich Ore Deposits Linked to Ancient Atmosphere
Much of our planet's mineral
wealth was deposited
billions of years ago when
Earth's chemical cycles were
different from today's.
Using geochemical clues from
... > full story
Paleontologists Find Extinction Rates Higher in Open-Ocean Settings During Mass Extinctions
Researchers have uncovered a
strikingly pattern for
ancient mass extinctions:
extinctions rates during
mass extinctions were
... > full story
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Climate Change Could Boost Incidence of Civil War in Africa
November 24, 2009 — Using historical data on the relationship between temperature and conflict in Africa, researchers have estimated the effect of rising temperatures due to global warming. They concluded that the ... > full story -
Using New Technique, Scientists Find Eleven Times More Aftershocks for 2004 Quake
November 23, 2009 — Using a technique normally used for detecting weak tremor, scientists have discovered that the 2004 magnitude 6 earthquake along the Parkfield section of the San Andreas fault exhibited almost 11 ... > full story -
Oceans' Uptake of Human-Made Carbon May Be Slowing
November 19, 2009 — The oceans play a key role in regulating climate, absorbing more than a quarter of the carbon dioxide that humans put into the air. Now, the first year-by-year accounting of this mechanism during the ... > full story -
SMOS Satellite Instrument Comes Alive
November 19, 2009 — The MIRAS instrument on ESA's SMOS satellite, launched earlier this month, has been switched on and is operating normally. MIRAS will map soil moisture and ocean salinity to improve our understanding ... > full story -
Diatoms Reveal Climate Changes
November 18, 2009 — Some 500 years ago there was a change in the circulation in the atmosphere over Scandinavia. This probably led to increased amounts of winter precipitation in northern Sweden for a ... > full story -
Dozen Lesser-Known Chemicals Have Strong Impact on Climate Change
November 18, 2009 — A new study indicates that major chemicals most often cited as leading causes of climate change, such as carbon dioxide and methane, are outclassed in their warming potential by compounds receiving ... > full story -
When Glass Develops Into a Shell: New Findings in Diatoms
November 18, 2009 — Diatoms are microalgae that are responsible for nearly a quarter of the oxygen we breathe, but how does their glass-like skeleton develop? Researchers have solved part of the mystery concerning these ... > full story -
Monsoon Model Indicates Potential for Abrupt Transitions
November 18, 2009 — A self-amplifying effect presently sustains monsoon winds, but it could also disrupt the circulation over land and sea. The periodical rainfall could stop from one season to another or for months ... > full story -
Research Challenges for Understanding Landscape Changes Identified
November 18, 2009 — Nine research challenges and four research initiatives that are poised to advance the study of how Earth's landscapes change were unveiled by the National Research ... > full story -
How Much Water Does the Ocean Have?
November 17, 2009 — The calculation of variations in the sea level is relatively simple. It is by far more complicated to then determine the change in the water mass. A team of geodesists and oceanographers have now, ... > full story
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