Navigation Links
Fossilized pollen reveals climate history of northern Antarctica
Date:6/27/2011

HOUSTON -- (June 27, 2011) -- A painstaking examination of the first direct and detailed climate record from the continental shelves surrounding Antarctica reveals that the last remnant of Antarctic vegetation existed in a tundra landscape on the continent's northern peninsula about 12 million years ago. The research, which was led by researchers at Rice University and Louisiana State University, appears online this week and will be featured on the cover of the July 12 issue of the Proceedings of the National Academy of Sciences.

The new study contains the most detailed reconstruction to date of the climatic history of the Antarctic Peninsula, which has warmed significantly in recent decades. The rapid decline of glaciers along the peninsula has led to widespread speculation about how the rest of the continent's ice sheets will react to rising global temperatures.

"The best way to predict future changes in the behavior of Antarctic ice sheets and their influence on climate is to understand their past," said Rice University marine geologist John Anderson, the study's lead author. The study paints the most detailed picture to date of how the Antarctic Peninsula first succumbed to ice during a prolonged period of global cooling.

In the warmest period in Earth's past 55 million years, Antarctica was ice-free and forested. The continent's vast ice sheets, which today contain more than two-thirds of Earth's freshwater, began forming about 38 million years ago. The Antarctic Peninsula, which juts farther north than the rest of the continent, was the last part of Antarctica to succumb to ice. It's also the part that has experienced the most dramatic warming in recent decades; its mean annual temperatures rose as much as six times faster than mean annual temperatures worldwide.

"There's a longstanding debate about how rapidly glaciation progressed in Antarctica," said Sophie Warny, a Louisiana State University geologist wh
'/>"/>

Contact: Jade Boyd
jadeboyd@rice.edu
713-348-6778
Rice University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Ancient DNA, not fossilized bones, shows late survival of Ice Age megafauna
2. Worlds largest snake discovered in fossilized rainforest
3. Pollen also appears outside flowering season
4. UF Pine lsland pollen study leads to revision of states ancient geography
5. Amount of dust, pollen matters for cloud precipitation, climate change
6. Gone with the wind: Far-flung pine pollen still potent miles from the tree
7. Algae and pollen grains provide evidence of remarkably warm period in Antarcticas history
8. Exeter study reveals US turtles movements
9. New research on community gardening reveals the roots of emotional and physical health
10. Landmark report reveals immense burden of osteoporotic fractures in Europe
11. Study reveals important aspects of signaling across cell membranes in plants
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Fossilized pollen reveals climate history of northern Antarctica
(Date:9/18/2014)... Miranda, a small, icy moon of Uranus, is one ... the solar system. Despite its relatively small size, Miranda ... that resulted in the formation of at least three ... coronae. , These coronae are visible in Miranda,s ... km across. Arden corona, the largest, has ridges and ...
(Date:9/18/2014)... McGill University and the Quebec government have discovered ... Canadian Journal of Fisheries and Aquatic Sciences . ... cleansers, or industrial cleansers, to which they are ... size and buoyancy, they may readily pass through ... contaminant in the world,s oceans, but have only ...
(Date:9/18/2014)... that prompts millions of Americans to undertake jaunts into the ... a little longer within a century, according to new research. ... areas of the United States as summer temperatures linger later ... Global Ecology and Biogeography . For instance, the paper ... tree of New Hampshire could change color one to ...
Breaking Biology News(10 mins):Miranda: An icy moon deformed by tidal heating 2Miranda: An icy moon deformed by tidal heating 3Miranda: An icy moon deformed by tidal heating 4Miranda: An icy moon deformed by tidal heating 5Miranda: An icy moon deformed by tidal heating 6Miranda: An icy moon deformed by tidal heating 7Microplastic pollution discovered in St. Lawrence River sediments 2Fall foliage season may be later, but longer on warmer Earth 2Fall foliage season may be later, but longer on warmer Earth 3Fall foliage season may be later, but longer on warmer Earth 4
... transmitted between two individuals in a population is crucial ... New research has laid the foundation for a ... allow for more targeted prevention strategies. By using ... Physical Review Letters , outlines a predictive model of ...
... British Columbia , Feb. 5, 2013 Xenon, ... rare diseases, today announced that it has received a ... marketing approval of Glybera®, a novel gene therapy treatment ... the first gene therapy approved in the Western world. ...
... of Alberta polar bear researcher along with eleven international ... Arctic ecosystem change to deal with a climate change ... Andrew Derocher co-authored a policy perspective in the journal ... populations to accept that just one unexpected jump in ...
Cached Biology News:Can you predict how a disease will spread in a population? 2Xenon Receives a Milestone Payment for Marketing Approval of Glybera in Europe 2Polar bear researchers urge governments to act now and save the species 2
(Date:9/19/2014)... Charlotte, NC (PRWEB) September 19, 2014 ... Certified Biobased Product Label for its Organic Cotton ... the product’s amount of renewable biobased ingredients meets or ... or intermediate materials composed in whole or in significant ... “This logo/label will allow our Organic cotton to be ...
(Date:9/18/2014)... Bipartisan passage this week by the U.S. ... development and commercialization of new technologies and promote growth ... SPIE, the international society for optics and photonics ... (RAMI) Act, now moves to the full Senate for ... optimistic that it will win passage there as well ...
(Date:9/18/2014)... KEEGO HARBOR, Mich. , Sept. 18, 2014  Health ... -based biotech firm investigating early-stage algae bioactive compounds and metabolic ... member to the company,s board of directors. Ms. Nola ... executive and investment advisor joined the board effective September 17, ... have Ms. Masterson agree to join our board," states ...
(Date:9/18/2014)... 2014 Research and Markets ... N-acetylcysteine Industry Report 2014" report to their ... Report 2014 is a professional and in-depth study ... industry. The report provides a basic ... and industry chain structure. The N-acetylcysteine market analysis ...
Breaking Biology Technology:Barnhardt Manufacturing Company Earns USDA Certified Biobased Product Certification and Label for Organic Cotton 2House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 2House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 3Health Enhancement Announces New Board Member In Advance Of Annual Shareholder Meeting 2Global N-acetylcysteine Industry Report 2014 2
... Communications MILWAUKEE When the topic of economic crisis comes ... Wisconsin. With institutions such as the University of Wisconsin-Milwaukee ... out talented graduates every year and a long history as ... stable environment that would attract big business. , ,However, ...
... to have a good grasp on their tangible property. ... value of their products. On the other hand, they ... Companies may understand that inventions could generally have some ... is possible to obtain patents on those inventions. However, ...
... NameProtect Inc. has announced the availability of its ... data to trademark professionals from a wide range of ... is meant to achieve efficient and competitive trademark clearance ... , ,Users will be able to integrate references ...
Cached Biology Technology:A cry for unity for the economy of southeast Wisconsin 2A cry for unity for the economy of southeast Wisconsin 3A cry for unity for the economy of southeast Wisconsin 4Save money through smart patenting 2Save money through smart patenting 3Save money through smart patenting 4NameProtect announces Web-enhanced trademark software 2
...
Agarose for baculovirus plaque assays which allow optimal growth of plated insect cells....
BD BaculoGold Max-XP Insect Cell Medium 1 Liter...
Mycoplasma and virus tested...
Biology Products: