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Latest Lamont-Doherty Earth Observatory Stories

old-growth forest study site in Savage Gulf
2014-04-18 06:48:19

April Flowers for redOrbit.com - Your Universe Online So far, the spring of 2014 has seen more than 40 percent of the western US in a drought that the USDA has deemed "severe" or "exceptional." In 2013, the drought was just as severe, and in 2012 it spread to the humid eastern states. Looking at the effects of a drought in geological terms, it would be easy to assume that a three-year drought is inconsequential in the long term, despite the devastating effects it might have on farmers...

Ice Age Did Not Stop The Arctic Current From Flowing
2013-05-30 05:30:24

April Flowers for redOrbit.com - Your Universe Online When thick ice covered the Arctic during the last ice age, many scientists assumed that the deep currents below the ice that feed the North Atlantic Ocean and help drive the global ocean currents slowed or possibly even stopped. A new study reveals that the deep Arctic Ocean has been churning briskly for the last 35,000 years, through the chill of the last ice age and warmth of modern times. These findings, published in the journal...

Delay In Summer Rains Could Affect Agriculture, Livestock And Desert Ecosystems Over Parts Of US And Mexico
2013-03-12 16:40:53

The Earth Institute at Columbia University A delay in the summer monsoon rains that fall over the southwestern United States and northwestern Mexico is expected in the coming decades according to a new study in the Journal of Geophysical Research. The North American monsoon delivers as much as 70 percent of the region's annual rainfall, watering crops and rangelands for an estimated 20 million people. "We hope this information can be used with other studies to build realistic...

Past Climate Change Linked With Ancient Alteration of Seawater Chemistry
2012-07-20 15:41:27

Dissolution or creation of huge gypsum deposits changed sulfate content of the oceans Scientists have discovered a potential cause of Earth's "icehouse climate" cooling trend of the past 45 million years. It has everything to do with the chemistry of the world's oceans. "Seawater chemistry is characterized by long phases of stability, which are interrupted by short intervals of rapid change," says geoscientist Ulrich Wortmann of the University of Toronto, lead author of a paper...

Do Urban 'Heat Islands' Hint At Trees Of Future?
2012-04-24 13:49:46

Common oaks get a boost in New York's Central Park City streets can be mean, but somewhere near Brooklyn, a tree grows far better than its country cousins, due to chronically elevated city heat levels, says a new study. The study, just published in the journal Tree Physiology , shows that common native red oak seedlings grow as much as eight times faster in New York's Central Park than in more rural, cooler settings in the Hudson Valley and Catskill Mountains. Red oaks and their close...

Death Valley Crater May Have Future Big Bang Potential
2012-01-24 10:22:17

In California's Death Valley, death is looking just a bit closer. Geologists have determined that the half-mile-wide Ubehebe Crater, formed by a prehistoric volcanic explosion, was created far more recently than previously thought–and that conditions for a sequel may exist today. Up to now, geologists were vague on the age of the 600-foot deep crater, which formed when a rising plume of magma hit a pocket of underground water, creating an explosion. The most common estimate was about...

Iberian Coast Ocean Drilling Expedition Reports Early Findings
2012-01-23 12:10:57

Underwater river of mud and sand tells tale of climate change and ocean gateways, new oil and gas exploration possibilities 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 where hydrocarbon deposits may lie buried under the sea. A team of 35 scientists from 14 countries recently returned from an expedition off the southwest coast of Iberia and the...

Scientists Make Progress In Assessing Tornado Seasons
2012-01-20 05:46:50

Study Offers First Step in Short-Term Forecasting Meteorologists can see a busy hurricane season brewing months ahead, but until now there has been no such crystal ball for tornadoes, which are much smaller and more volatile. This information gap took on new urgency after tornadoes in 2011 killed more than 550 people, more than in the previous 10 years combined, including a devastating outbreak in April that racked up $5 billion in insured losses. Now, a new study of short-term climate...

Image 1 - Microbes Could Help Scientists Unlock Earth's Deep Secrets
2012-01-09 11:05:22

To find answers, oceanographers install observatories beneath remote seafloor Of all the habitable parts of our planet, one ecosystem still remains largely unexplored and unknown to science: the igneous ocean crust. This rocky realm of hard volcanic lava exists beneath ocean sediments that lie at the bottom of much of the world's oceans. While scientists have estimated that microbes living in deep ocean sediments may represent as much as one-third of Earth's total biomass, the...

Ohio Officials Suspend Fracking Operations At Well
2012-01-05 05:57:26

Ohio officials said Tuesday that the state has suspended operations at a well used to dispose of waste water from "fracking". The suspension comes after suspicion that disposal of waste water by reinjecting it into the ground may have triggered seismic activity. The latest earthquake measured 4.0 on New Year's Eve and was near the well operated by D&L Energy in Youngstown. The state shut down operations at the Youngstown injection well after a 2.7 magnitude quake on December 24....


Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
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