Navigation Links
Arctic heats up more than other places
Date:1/16/2009

Temperature change in the Arctic is happening at a greater rate than other places in the Northern Hemisphere, and this is expected to continue in the future.

As a result, glacier and ice-sheet melting, sea-ice retreat, coastal erosion and sea level rise can be expected to continue.

A new comprehensive scientific synthesis of past Arctic climates demonstrates for the first time the pervasive nature of Arctic climate amplification.

The U.S. Geological Survey led this new assessment, which is a synthesis of published science literature and authored by a team of climate scientists from academia and government. The U.S. Climate Change Science Program commissioned the report, which has contributions from 37 scientists from the United States, Germany, Canada, the United Kingdom and Denmark.

The new report also makes several conclusions about the Arctic:

Taken together, the size and speed of the summer sea-ice loss over the last few decades is highly unusual compared to events from previous thousands of years, especially considering that changes in Earth's orbit over this time have made sea-ice melting less, not more, likely.

Sustained warming of at least a few degrees (more than approximately 4 to 13F above average 20th century values) is likely to be sufficient to cause the nearly complete, eventual disappearance of the Greenland ice sheet, which would raise sea level by several meters.

The current rate of human-influenced Arctic warming is comparable to peak natural rates documented by reconstructions of past climates. However, some projections of future human-induced change exceed documented natural variability.

The past tells us that when thresholds in the climate system are crossed, climate change can be very large and very fast. We cannot rule out that human induced climate change will trigger such events in the future.

"By integrating research on the past 65 million years of climate change in the entire circum-Arctic, we have a better understanding on how climate change affects the Arctic and how those effects may impact the whole globe," said USGS Director Mark Myers. "This report provides the first comprehensive analysis of the real data we have on past climate conditions in the Arctic, with measurements from ice cores, sediments and other Earth materials that record temperature and other conditions."


'/>"/>

Contact: Jessica Robertson
jrobertson@usgs.gov
703-648-6624
United States Geological Survey
Source:Eurekalert

Related biology news :

1. ESA satellites focusing on the Arctic
2. First comprehensive inventory of life in Antarctica
3. FSU Historians Arctic research has him sitting on top of the world
4. Arctic sea ice thinning at record rate
5. Arctic science conference to focus on northern sustainability
6. Unexplored Arctic region to be mapped
7. Arctic ice on the verge of another all-time low
8. Greenland ice core reveals history of pollution in the Arctic
9. Successful series of measurements in Arctic sea ice
10. Rare Antarctic fossils reveal extinction of tundra before full polar climate arrived
11. Antarctic fossils paint a picture of a much warmer continent
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/31/2016)... BOCA RATON, Florida , March 31, 2016 /PRNewswire/ ... LEGX ) ("LegacyXChange" or the "Company") ... presentation for potential users of its soon to be ... The video ( https://www.youtube.com/channel/UCyTLBzmZogV1y2D6bDkBX5g ) will also ... by the use of DNA technology to an industry ...
(Date:3/23/2016)... 2016 Einzigartige ... und Stimmerkennung mit Passwörtern     ... MESG ), ein führender Anbieter digitaler Kommunikationsdienste, ... SpeechPro zusammenarbeitet, um erstmals dessen Biometrietechnologie einzusetzen. ... Möglichkeit angeboten, im Rahmen mobiler Apps neben ...
(Date:3/21/2016)... , March 22, 2016 ... recognition with passcodes for superior security   ... a leading provider of secure digital communications services, today ... biometric technology and offer enterprise customers, particularly those in ... facial recognition and voice authentication within a mobile app, ...
Breaking Biology News(10 mins):
(Date:4/28/2016)... (PRWEB) , ... April 28, 2016 , ... ... made significant investments in recruiting top industry experts, and expanding its LATAM network ... provides industry-leading tools for clients to manage their clinical trial projects. , The ...
(Date:4/27/2016)... New York, NY (PRWEB) , ... April 27, ... ... without realizing it. Touch screen mobile devices with fingerprint recognition for secure ... image libraries are only a few ways consumers are interacting with biometrics technology ...
(Date:4/27/2016)... ... April 27, 2016 , ... PathSensors, Inc., a leading environmental ... Lamka will assist PathSensors in expanding the use of the company’s CANARY® technology ... test platform for the detection of harmful pathogens, including a number of bacteria, ...
(Date:4/27/2016)... , April 27, 2016 ... research report with specific focus on US, EU, ... Japan , to the healthcare business intelligence ... library. Complete report on the Flow ... companies and supported with 282 tables and figures ...
Breaking Biology Technology: