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Let’s not argue over who or what is causing it or what it’s called, its happening!
That is the conclusion of scientists analyzing half a century of temperatures on the continent, and the findings may help resolve a climate enigma at the bottom of the planet.
While some regions of Antarctica, particularly the peninsula the stretches toward South America, have warmed rapidly in recent decades, weather stations including the one at the South Pole have recorded a cooling trend. That ran counter to the forecasts of computer climate models, and global warming skeptics have pointed to Antarctica in questioning the reliability of the models.
Because of the climate record is still short, more work needs to be done to determine how much of the warming results from natural climate swings and how much from the warming effects of carbon dioxide released by the burning of fossil fuels, Dr. Steig said
“Obviously the situation is complex, resulting from a combination of man-made factors and natural variability,” said Michael Oppenheimer, a professor of geosciences at Princeton, who was not involved in the research. “But the idea of a long-term cooling is pretty clearly debunked.”
American Meteorological Society Panel on Arctic and Antarctic Melting
Google Video Link
This panel of climate scientists describes the state of scientific knowledge regarding changes in the global climate system, the role of humans in causing these changes, and the likely impacts on earth's ecosystems. Panelists include:Inez Fung, University of California at Berkeley and LBNL; John Harte, University of California at Berkeley; Xiangming Xiao, University of New Hampshire. The China-U.S. Climate Change Forum was organized by the Berkeley China Initiative, which is forging closer ties between U.C. Berkeley and China by bringing together key experts on important international and bilateral issues. Growing concern over climate change makes this topic an obvious choice for the first of this series of annual events. This panel will highlight the mutual vulnerability of China and the U.S. to climate change, and the indispensable role of scientific research in understanding the problem and developing solutions. The Forum is co-sponsored by Peking University's College of Environmental Sciences and UC Berkeley's Graduate School of Journalism, International and Area Studies, Institute of East Asian Studies, Center for Chinese Studies, Energy and Resources Group, and Berkeley Institute of the Environment. Financial sponsors include the Richard and Rhoda Goldman Fund, the Energy Foundation, and the Hewlett Foundation.
weather stations including the one at the South Pole have recorded a cooling trend. That ran counter to the forecasts of computer climate models, and global warming skeptics have pointed to Antarctica in questioning the reliability of the models.
In the new study, scientists took into account satellite measurements to interpolate temperatures in the vast areas between the sparse weather stations.
Originally posted by Blaine91555
I just wish they would show some kind of character by going after China and its constant giant brown cloud which should be their biggest worry. China totally rejected the idea of using modern power plants. We keep doing a better job and China does not care except in their propaganda. They have access to the same technology we do and rejected it.
Now, a new satellite analysis shows that at least once in the last several years, masses of unusually warm air pushed to within 310 miles of the South Pole and remained long enough to melt surface snow across a California-size expanse.
The warm spell, which occurred over one week in 2005, was detected by scientists from the Jet Propulsion Laboratory of NASA and the University of Colorado, Boulder.
The warm spell, which occurred over one week in 2005
It is too soon to know whether the warm spell was a fluke or a portent, Dr. Nghiem said.
Originally posted by infolurker
Want me to post a few pages of links on the recent fluke cold waves that lasted longer than this. Again, another story to lead you to believe that this represents a more than it does... completely alarmist.
Originally posted by infolurker
Originally posted by Tentickles
Good thread, good thread!
While I personally dont believe in global warming. I do believe in climate change. I know that sounds odd, but they are different things. Let's as a race join up and fight the changes! I know I do my part.
Climate Change or Global Warming?
The term climate change is often used interchangeably with the term global warming, but according to the National Academy of Sciences, "the phrase 'climate change' is growing in preferred use to 'global warming' because it helps convey that there are [other] changes in addition to rising temperatures."
The Earth's climate has changed many times during the planet's history, with events ranging from ice ages to long periods of warmth. Historically, natural factors such as volcanic eruptions, changes in the Earth's orbit, and the amount of energy released from the Sun have affected the Earth's climate. Beginning late in the 18th century, human activities associated with the Industrial Revolution have also changed the composition of the atmosphere and therefore very likely are influencing the Earth's climate.
The EPA climate change Web site has four main sections on climate change issues and another section on "What You Can Do" to reduce your contribution. A "Frequent Questions" section is available, and EPA has provided a frequent questions database where users can search for more specific questions and answers on climate change.
For over the past 200 years, the burning of fossil fuels, such as coal and oil, and deforestation have caused the concentrations of heat-trapping "greenhouse gases" to increase significantly in our atmosphere. These gases prevent heat from escaping to space, somewhat like the glass panels of a greenhouse.
Greenhouse gases are necessary to life as we know it, because they keep the planet's surface warmer than it otherwise would be. But, as the concentrations of these gases continue to increase in the atmosphere, the Earth's temperature is climbing above past levels. According to NOAA and NASA data, the Earth's average surface temperature has increased by about 1.2 to 1.4ºF in the last 100 years. The eight warmest years on record (since 1850) have all occurred since 1998, with the warmest year being 2005. Most of the warming in recent decades is very likely the result of human activities. Other aspects of the climate are also changing such as rainfall patterns, snow and ice cover, and sea level.
If greenhouse gases continue to increase, climate models predict that the average temperature at the Earth's surface could increase from 3.2 to 7.2ºF above 1990 levels by the end of this century. Scientists are certain that human activities are changing the composition of the atmosphere, and that increasing the concentration of greenhouse gases will change the planet's climate. But they are not sure by how much it will change, at what rate it will change, or what the exact effects will be. See the Science and Health and Environmental Effects sections of this site for more detail, or review the answers to some frequent science questions.
The build-up of greenhouse gases (GHGs) threatens to set the Earth inexorably on the path to a unpredictably different climate. The Intergovernmental Panel on Climate Change (IPCC) says many parts of the planet will be warmer. Droughts, floods and other forms of extreme weather will become more frequent, threatening food supplies. Plants and animals which cannot adjust will die out. Sea levels are rising and will continue to do so, forcing hundreds of thousands of people in coastal zones to migrate.