News tagged with abrupt climate changes


Comet

Charcoal evidence tracks climate changes in Younger Dryas

Space & Earth / Earth Sciences

created Jan 28, 2009 | popularity 4.4 / 5 (7) | comments 0

A new study reports that charcoal particles left by wildfires in sediments of 35 North American lake beds don't readily support the theory that comets exploding over the continent 12,900 years ago sparked ...





Search results for abrupt climate changes


Oceanic seesaw links Northern and Southern hemisphere during abrupt climate change

Space & Earth / Earth Sciences

created Feb 25, 2009 | popularity 4 / 5 (13) | comments 8

Very large and abrupt changes in temperature recorded over Greenland and across the North Atlantic during the last Ice Age were actually global in extent, according to an international team of researchers led by Cardiff University.


Slight changes in climate may trigger abrupt ecosystem responses

Space & Earth / Environment

created Jan 16, 2009 | popularity 2.8 / 5 (6) | comments 3

Some of these responses, including insect outbreaks, wildfire, and forest dieback, may adversely affect people as well as ecosystems and their plants and animals.


Abrupt global warming could shift monsoon patterns, hurt agriculture

Space & Earth / Earth Sciences

created Jun 11, 2009 | popularity 2.2 / 5 (6) | comments 2

At times in the distant past, an abrupt change in climate has been associated with a shift of seasonal monsoons to the south, a new study concludes, causing more rain to fall over the oceans than in the Earth's tropical regions, ...


Tracking down abrupt climate changes

Space & Earth / Earth Sciences

created Aug 01, 2008 | popularity 4.6 / 5 (10) | comments 1

In an article in the scientific magazine Nature Geosciences, the geoscientists Achim Brauer, Peter Dulski and Jörg Negendank, (emeritus Professor) from the GFZ German Research Centre for Geosciences, Gerald Haug from the DF ...


Research indicates ocean current shutdown may be gradual

Space & Earth / Earth Sciences

created Jul 16, 2009 | popularity 3.9 / 5 (7) | comments 6

The findings of a major new study are consistent with gradual changes of current systems in the North Atlantic Ocean, rather than a more sudden shutdown that could lead to rapid climate changes in Europe and elsewhere.


Some climate impacts happening faster than anticipated

Space & Earth / Environment

created Dec 17, 2008 | popularity 2.8 / 5 (18) | comments 22

A report released today at the annual meeting of the American Geophysical Union provides new insights on the potential for abrupt climate change and the effects it could have on the United States, identifying key concerns ...


Abrupt climate change more common than believed

Space & Earth / Earth Sciences

created Mar 30, 2007 | popularity 4.2 / 5 (39) | comments 0

It came on quickly and then lasted nearly two decades, eventually killing more than one million people and affecting 50 million more. All of this makes the Sahel drought, which first struck West Africa in the late 1960s, ...


'Calm before storm' may foreshadow climatic tipping point

'Calm before storm' may foreshadow climatic tipping point

Space & Earth / Earth Sciences

created Sep 17, 2008 | popularity 3.6 / 5 (137) | comments 63

(PhysOrg.com) -- Abrupt climate change has occurred on earth many times over the past millions of years. Climate scientists hypothesize that these sharp transitions may be caused when the earth system reaches ...


Earth

Rapid changes in the winter climate

Space & Earth / Earth Sciences

created Aug 14, 2009 | popularity 4.3 / 5 (4) | comments 5

The Baltic Sea winter climate has changed more in the last 500 years than previously thought. Research at the University of Gothenburg, Sweden, shows that our part of the world has experienced periods of both ...


Abrupt climate shifts may move faster than thought

Space & Earth / Environment

created Dec 19, 2008 | popularity 2.4 / 5 (17) | comments 3

The United States could suffer the effects of abrupt climate changes within decades—sooner than some previously thought--says a new government report. It contends that seas could rise rapidly if melting of polar ice continues ...



List of search results for abrupt climate changes