News tagged with sediment cores

Related topics: proceedings of the national academy of sciences , climate change

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

Scientists core into California's Clear Lake to explore past climate change

(Phys.org) -- University of California, Berkeley, scientists are drilling into ancient sediments at the bottom of Northern California's Clear Lake for clues that could help them better predict how today's ...

Space & Earth / Earth Sciences

created May 03, 2012 | popularity 5 / 5 (2) | comments 16 | 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

Scientists detect huge carbon 'burp' that helped end last ice age

(PhysOrg.com) -- Scientists have found the possible source of a huge carbon dioxide 'burp' that happened some 18,000 years ago and which helped to end the last ice age.

Space & Earth / Earth Sciences

created May 27, 2010 | popularity 3.7 / 5 (31) | comments 18 | with audio podcast

Scientists probe Earth's core

We know more about distant galaxies than we do about the interior of our own planet. However, by observing distant earthquakes, researchers at the University of Calgary have revealed new clues about the top ...

Space & Earth / Earth Sciences

created Apr 28, 2010 | popularity 4.4 / 5 (20) | comments 4 | with audio podcast

Global warming: Our best guess is likely wrong

No one knows exactly how much Earth's climate will warm due to carbon emissions, but a new study this week suggests scientists' best predictions about global warming might be incorrect.

Space & Earth / Earth Sciences

created Jul 14, 2009 | popularity 4.6 / 5 (49) | comments 54

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

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

Ancient catastrophic drought leads to question: How severe can climate change become?

How severe can climate change become in a warming world? Worse than anything we've seen in written history, according to results of a study appearing this week in the journal Science.

Space & Earth / Earth Sciences

created Feb 24, 2011 | popularity 3.8 / 5 (19) | comments 24 | with audio podcast

Rising CO2 levels at end of Ice Age not tied to Pacific Ocean

At the end of the last Ice Age, atmospheric carbon dioxide levels rose rapidly as the planet warmed; scientists have long hypothesized that the source was CO2 released from the deep ocean.

Space & Earth / Earth Sciences

created Oct 03, 2011 | popularity 5 / 5 (6) | comments 6 | 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

2,300-year climate record suggests severe tropical droughts as northern temperatures rise

A 2,300-year climate record University of Pittsburgh researchers recovered from an Andes Mountains lake reveals that as temperatures in the Northern Hemisphere rise, the planet's densely populated tropical ...

Space & Earth / Earth Sciences

created May 11, 2011 | popularity 4.9 / 5 (8) | comments 15 | with audio podcast

The first evidence of pre-industrial mercury pollution in the Andes

The study of ancient lake sediment from high altitude lakes in the Andes has revealed for the first time that mercury pollution occurred long before the start of the Industrial Revolution.

Space & Earth / Environment

created May 18, 2009 | popularity 4.4 / 5 (9) | comments 2

Rapid changes in Greenland climate last 5,000 years, study finds

(PhysOrg.com) -- Abrupt average temperature changes of as much as 4 or 5 degrees Celsius over a few decades may have profoundly affected human civilization for cultures that occupied western Greenland over ...

Space & Earth / Earth Sciences

created Jun 01, 2011 | popularity 4.1 / 5 (7) | comments 0 | with audio podcast

Scientists study earthquake triggers in Pacific ocean

(PhysOrg.com) -- New samples of rock and sediment from the depths of the eastern Pacific Ocean may help explain the cause of large, destructive earthquakes similar to the Tohoku Earthquake that struck Japan ...

Space & Earth / Earth Sciences

created Jun 29, 2011 | popularity 4.5 / 5 (2) | comments 0 | with audio podcast