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News Roundup September 13, 2007

Antarctic ice grows to record levels & Over 500 scientists published studies countering global warming fears

By EPW Blog

Saturday, August 4, 2007

Antarctic ice grows to record levels

(By Meteorologist Joe D’Aleo)

Excerpt: While the news focus has been on the lowest ice extent since satellite monitoring began in 1979 for the Arctic, the Southern Hemisphere (Antarctica) has quietly set a new record for most ice extent since 1979. This can be seen on this graphic from this University of Illinois site The Cryosphere Today, which updated snow and ice extent for both hemispheres daily. The Southern Hemispheric areal coverage is the highest in the satellite record, just beating out 1995, 2001, 2005 and 2006. Since 1979, the trend has been up for the total Antarctic ice extent. While the Antarctic Peninsula area has warmed in recent years and ice near it diminished during the Southern Hemisphere summer, the interior of Antarctica has been colder and ice elsewhere has been more extensive and longer lasting, which explains the increase in total extent. This dichotomy was shown in this World Climate Report blog posted recently with a similar tale told in this paper by Ohio State Researcher David Bromwich, who agreed "It’s hard to see a global warming signal from the mainland of Antarctica right now". Indeed, according the NASA GISS data, the South Pole winter (June/July/August) has cooled about 1 degree F since 1957 and the coldest year was 2004. This winter has been an especially harsh one in the Southern Hemisphere with cold and snow records set in Australia, South America and Africa. We will have recap on this hard winter shortly.

http://icecap.us/index.php/go/joes-blog/a_new_record_for_antartic_total_ice_extent

Former Harvard Physcist Lubos Motl Weight in on Antarctic Ice

Excerpt: Satellites began to measure the Earth's cryosphere in 1979. Because of a warm summer, the Northern Hemisphere sea ice area has reached new historic lows in 2007. Around August 28th, the new minimum of 2.99 million squared kilometers of sea ice easily surpassed the previous record of 4.01 million squared kilometers set in 2005. These numbers available at the web page of Dr William Chapman and his team at University of Illinois at Urbana-Champaign were widely publicized. Some analysts have speculated that the new record could be evidence of global warming. But is it? Even though it may sound very complicated, it turns out that the Earth is round. At the global scale, there is not one polar region but, in fact, two. There is also sea ice on the Southern Hemisphere. It turns out that the Antarctic sea ice area reached 16.2 million squared kilometers in 2007 - a new absolute record high since the measurements started in 1979: see this graph. During the year, the Southern Hemisphere sea ice area fluctuates between 2 and 16 million squared kilometers or so while the Northern Hemisphere sea ice area fluctuates approximately between 3 and 14 million squared kilometers. The climate models predict warming in Antarctica and they are increasingly inconsistent with the observations.

http://motls.blogspot.com/2007/09/antarctic-sea-ice-at-record-high.html

Analysis finds over 500 scientists published studies countering global warming fears

Excerpt: Challenge to Scientific Consensus on Global Warming: Analysis Finds Hundreds of Scientists Have Published Evidence Countering Man-Made Global Warming Fears - A new analysis of peer-reviewed literature reveals that more than 500 scientists have published evidence refuting at least one element of current man-made global warming scares. More than 300 of the scientists found evidence that 1) a natural moderate 1,500-year climate cycle has produced more than a dozen global warmings similar to ours since the last Ice Age and/or that 2) our Modern Warming is linked strongly to variations in the sun's irradiance.

"This data and the list of scientists make a mockery of recent claims that a scientific consensus blames humans as the primary cause of global temperature increases since 1850," said Hudson Institute Senior Fellow Dennis Avery. Other researchers found evidence that 3) sea levels are failing to rise importantly; 4) that our storms and droughts are becoming fewer and milder with this warming as they did during previous global warmings; 5) that human deaths will be reduced with warming because cold kills twice as many people as heat; and 6) that corals, trees, birds, mammals, and butterflies are adapting well to the routine reality of changing climate. Despite being published in such journals such as Science, Nature and Geophysical Review Letters, these scientists have gotten little media attention. "Not all of these researchers would describe themselves as global warming skeptics," said Avery, "but the evidence in their studies is there for all to see."

"We've had a Greenhouse Theory with no evidence to support it-except a moderate warming turned into a scare by computer models whose results have never been verified with real-world events," said co-author Singer. "On the other hand, we have compelling evidence of a real-world climate cycle averaging 1470 years (plus or minus 500) running through the last million years of history. The climate cycle has above all been moderate, and the trees, bears, birds, and humans have quietly adapted." "Two thousand years of published human histories say that the warm periods were good for people," says Avery. "It was the harsh, unstable Dark Ages and Little Ice Age that brought bigger storms, untimely frost, widespread famine and plagues of disease."

"There may have been a consensus of guesses among climate model-builders," says Singer. "However, the models only reflect the warming, not its cause." He noted that about 70 percent of the earth's post-1850 warming came before 1940, and thus was probably not caused by human-emitted greenhouse gases. The net post-1940 warming totals only a tiny 0.2 degrees C.

http://www.prnewswire.com/news/index_mail.shtml?ACCT=104&STORY=/www/story/09-12-2007/0004661425&EDATE=

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Absolutely. It is clear that the weather is changing...in places. What is not clear is a.) is it caused by human activity, and b.) is it part of a cycle or the beginning of a long term trend.

Parts of the earth have been warmer than they are now....parts of the earth have been colder than they are now. That's all we know for sure.

Personally, I equate "global warming" to "string theory". The people who currentlly judge scientific papers and award grants for continuing support wrote their papers on the subject years ago. In order to justify their opinions, they're funding other people who agree with them...and ignoring the ones who don't. Really, really bad science.

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