News tagged with sea sediments

Fastest sea-level rise in two millennia linked to increasing temperatures

(PhysOrg.com) -- An international research team including University of Pennsylvania scientists has shown that the rate of sea-level rise along the U.S. Atlantic coast is greater now than at any time in the ...

Space & Earth / Earth Sciences

created Jun 20, 2011 | popularity 4 / 5 (17) | comments 32 | with audio podcast

New map reveals giant fjords beneath East Antarctic ice sheet

Scientists from the U.S., U.K. and Australia have used ice-penetrating radar to create the first high- resolution topographic map of one of the last uncharted regions of Earth, the Aurora Subglacial Basin, ...

Space & Earth / Earth Sciences

created Jun 01, 2011 | popularity not rated yet | comments 7 | with audio podcast

Antarctic sea temperatures cooled in Holocene but now rising: study

(PhysOrg.com) -- A new study of an ocean sediment core taken from deep water off the coast of the western Antarctic Peninsula is beginning to fill in some of the gaps in our knowledge of climate variability ...

Space & Earth / Earth Sciences

created Feb 10, 2011 | popularity 4.2 / 5 (18) | comments 20 | with audio podcast report

Arctic ice at low point compared to recent geologic history

Less ice covers the Arctic today than at any time in recent geologic history. That's the conclusion of an international group of researchers, who have compiled the first comprehensive history of Arctic ice.

Space & Earth / Earth Sciences

created Jun 02, 2010 | popularity 3.6 / 5 (23) | comments 8 | with audio podcast

California's Ancient Kelp Forest

(PhysOrg.com) -- The kelp forests off southern California are considered to be some of the most diverse and productive ecosystems on the planet, yet a new study indicates that today's kelp beds are less extensive and lush ...

Biology / Ecology

created Nov 10, 2009 | popularity 4.7 / 5 (6) | comments 0

Pacific tsunami threat greater than expected

The potential for a huge Pacific Ocean tsunami on the West Coast of America may be greater than previously thought, according to a new study of geological evidence along the Gulf of Alaska coast.

Space & Earth / Earth Sciences

created Jul 20, 2009 | popularity 4.3 / 5 (8) | comments 0

New study may answer questions about enigmatic Little Ice Age

A new University of Colorado Boulder-led study appears to answer contentious questions about the onset and cause of Earth's Little Ice Age, a period of cooling temperatures that began after the Middle Ages ...

Space & Earth / Earth Sciences

created Jan 30, 2012 | popularity 4.8 / 5 (8) | comments 9 | with audio podcast

Plant remains link farming to landscape damage in Peru

A study of food remains from ancient settlement sites along the lower Ica valley in Peru, confirms earlier suggestions that farming undermined the natural vegetation so badly that eventually much of the area ...

Space & Earth / Earth Sciences

created Aug 15, 2011 | popularity 5 / 5 (3) | comments 5 | with audio podcast

Fast-shrinking Greenland glacier experienced rapid growth during cooler times

Large, marine-calving glaciers have the ability not only to shrink rapidly in response to global warming, but to grow at a remarkable pace during periods of global cooling, according to University at Buffalo geologists working ...

Space & Earth / Earth Sciences

created Jul 14, 2011 | popularity not rated yet | comments 1 | with audio podcast

Salt marsh sediments help gauge climate-change-induced sea level rise

A newly constructed, 2,000-year history of sea level elevations will help scientists refine the models used to predict climate-change-induced sea level rise, according to an international team of climate researchers. The ...

Space & Earth / Earth Sciences

created Jun 20, 2011 | popularity 4.6 / 5 (5) | comments 6 | with audio podcast

Ecological impact on Canada's Arctic coastline linked to global climate change

Scientists from Queen's and Carleton universities head a national multidisciplinary research team that has uncovered startling new evidence of the destructive impact of global climate change on North America's ...

Space & Earth / Environment

created May 16, 2011 | popularity 4.3 / 5 (7) | comments 16 | with audio podcast

High seas may be responsible for Taiwan settlement

(PhysOrg.com) -- University of Hawaii archaeologists, led by Barry Rolett, have published a journal in Quaternary Science Reviews focusing on the early settlements of Taiwan. It is their belief that rising ...

Other Sciences / Archaeology & Fossils

created Apr 05, 2011 | popularity 5 / 5 (3) | comments 0 | with audio podcast report

Bering Sea was ice-free and full of life during last warm period, study finds

Deep sediment cores retrieved from the Bering Sea floor indicate that the region was ice-free all year and biological productivity was high during the last major warm period in Earth's climate history.

Space & Earth / Earth Sciences

created Dec 13, 2010 | popularity 4.6 / 5 (9) | comments 120 | with audio podcast

Large CO2 release speeds up ice age melting

Radiocarbon dating is used to determine the age of everything from ancient artifacts to prehistoric corals on the ocean bottom.

Space & Earth / Earth Sciences

created Aug 26, 2010 | popularity 3.5 / 5 (11) | comments 2 | with audio podcast

Deep in sediments off Antarctica, Stanford scientists find insight into past -- and possible future -- climates

(PhysOrg.com) -- From the Antarctic Ocean, Earth scientist Rob Dunbar blogs about the challenges of drilling ancient deep-sea sediments -- and what he's found in them.

Space & Earth / Earth Sciences

created Feb 18, 2010 | popularity 4.3 / 5 (6) | comments 5 | with audio podcast