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Excerpts from Executive Summary of USGS Report on Abrupt Climate Change

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Abrupt Climate Change: Will It Happen this Century?

Released: 12/16/2008 12:00:00 PM

... the primary conclusions presented in this report are:

* Recent rapid changes at the edges of the Greenland and West Antarctic ice sheets show acceleration of flow and thinning, with the velocity of some glaciers increasing more than twofold ... It is unclear whether this imbalance is a short-term natural adjustment or a response to recent climate change, but processes causing accelerations are enabled by warming, so these adjustments will very likely become more frequent in a warmer climate.

...

* There is no clear evidence to date of human-induced global climate change on North American precipitation amounts. However ... subtropical aridity is likely to intensify and persist due to future greenhouse warming. This projected drying extends poleward into the United States Southwest, potentially increasing the likelihood of severe and persistent drought there in the future.

...

* The AMOC is the northward flow of warm, salty water in the upper layers of the Atlantic, and the southward flow of colder water in the deep Atlantic. It plays an important role in the oceanic transport of heat from low to high latitudes ... It is very unlikely that the AMOC will undergo an abrupt transition to a weakened state or collapse during the course of the 21st century, and it is unlikely that the AMOC will collapse beyond the end of the 21st century because of global warming, although the possibility cannot be entirely excluded.

* A dramatic abrupt release of methane (CH4) to the atmosphere appears very unlikely.

Source: http://www.climatescience.gov/Library/sap/...ort/default.htm


Man is made by his belief. As he believes, so he is.

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Filed: Country: Philippines
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The study on the climatescience.gov link is by the US Geological Survey.

What is it about them you find so funny?

The IPCC Report stands as the reliable source on Climate Change.

On June 11, 2001, the President announced that his administration would "establish the U.S. Climate Change Research Initiative to study areas of uncertainty [about global climate change science] and identify priority areas where investments can make a difference." The Secretary of Commerce, working with other agencies, was directed to "set priorities for additional investments in climate change research, review such investments, and to improve coordination amongst Federal agencies."

http://www.alexa.com/data/details/main/climatescience.gov

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Filed: Citizen (apr) Country: Brazil
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The IPCC Report stands as the reliable source on Climate Change.

Your faith borders on the religious.

my global warming site is better than yours! bitchslap.gif


* ~ * Charles * ~ *
 

I carry a gun because a cop is too heavy.

 

USE THE REPORT BUTTON INSTEAD OF MESSAGING A MODERATOR!

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Filed: Country: Philippines
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The IPCC Report stands as the reliable source on Climate Change.

Your faith borders on the religious.

I'm watching, "An Inconvienent Truth" right now on the Science Channel. You should be watching it too.

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Filed: Country: Vietnam (no flag)
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The IPCC Report stands as the reliable source on Climate Change.

Your faith borders on the religious.

I'm watching, "An Inconvienent Truth" right now on the Science Channel. You should be watching it too.

Do they have the Science Channel at "work" A.J.?

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Filed: Country: Philippines
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In the last twelve months, the climate change debate has taken a dramatic turn. The release of the IPCC Fourth Assessment Report and the Stern Review report on The Economics of Climate Change, the movie An Inconvenient Truth, and the Nobel Peace prize awarded to the IPCC and Al Gore have galvanized public opinion and created a new momentum to address what many world leaders describe as the most serious challenge ever faced by human societies.

At the same time, it is now less than just 18 months before nations must agree on a new and fully formed climate treaty under the UN Framework Convention on Climate Change (UNFCCC) in Copenhagen in late 2009. As a part of its support to multilateral environmental agreements, and in close cooperation with the UNFCCC secretariat, UNEP works towards the successful outcome of these crucial negotiations.

http://www.unep.org/themes/climatechange/News/index.asp

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