Skeptics Shed Needed Light on Truth
Not by Fire but by Ice
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5 November 07
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|Skeptics Shed Needed Light on Truth|
2 Nov 07 - When global warming alarmists condemn skeptics as "deniers," that is an unscientific and socially dangerous characterization. Skeptics are not the enemy. On the contrary, they are crucial to science because they help us search for truth.
For more than 1,000 years, the world accepted Aristotle's claim that the sun moved around the Earth, that the Earth was the center of the universe. Then Galileo, in the sixteenth century, used the newly invented telescope to confirm the Earth rotated around the sun.
Today, we have the same opportunity to see whether the evidence fits a popular theory, on global warming this time, but we risk media "house arrest" if we do.
Yet there are many inconvenient facts that demand explanation.
For example, Chinese researchers recently found evidence of a warm period from the year 1 to about 240 AD (known in the West as the Roman Warming); a cold period (the Dark Ages) from 240 to 800 AD; a warming (the Medieval Optimum) from 800 to 1400; and the Little Ice Age from 1400 to about 1920.
The Chinese researchers concluded China's warmest period during the past 2,000 years occurred around the year 100 AD. This aligns with Roman records of growing wine grapes in Britain during their occupation of that island in the first century--whereas Britain was unable to grow wine grapes from 1300 to 1950 because of too-cold temperatures. The Chinese researchers also learned trees respond to warmth and rainfall by growing more rapidly.
If China was warmer during the first century than today, we must ask what is so remarkable about today's warming.
Ice cores from Greenland and Antarctica confirm the existence of a 1,500-year climate cycle (plus or minus 500 years) that has brought the planet more than 500 global warmings in the past million years..
Perhaps the most powerful evidence of all is the strong correlation between sunspot records and the Earth's temperatures during observations made since 1860. Henrik Svensmark of the Danish Space Research Institute found a 95 percent correlation between the sunspot numbers and the record of the Earth's sea surface temperatures.
That isn't denial; it's reality.
See entire article by Bill Haymin http://www.americanchronicle.com/articles/viewArticle.asp?articleID=41938
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