Tunguska Event Responsible For Warming Climate?
It’s enough to give you a migraine, trying to reconcile all the possible factors that might contribute to climate change. But what if they’re all inconsequential, and there’s only a single event causing the warming trend? The 1908 Tunguska meteor’s explosion over Siberia is what one Russian scientist believes could be behind current global temperature rises. His paper on the subject, which claims that climate change is not the result of man-made greenhouse gases at all, is currently being considered for publication in the journal Science First Hand (published by the Russian Academy of Sciences).
Detailing his theory, Vladimir Shaidurov, of the Russian Academy of Sciences, explains how changes in the amount of ice crystals at high altitude could damage the layer of clouds found in the mesosphere that influence the amount of solar radiation reaching the earth's surface. Vladimir posits that the Tunguska event early last century could have driven just such a process.
Current global warming models show that the rise in carbon dioxide emissions neatly coincides with the onset of the industrial revolution, but Shaidurov’s own analysis of yearly mean temperature changes over 140 years indicate that there was actually a slight cooling in temperature up until the early twentieth century. Shaidurov believes that it was not the industrial revolution that caused the rise in temperature, but the catastrophe known as the Tunguska event, or Tungus meteorite.
The Tunguska event was a large meteor or asteroid that entered Earth’s atmosphere and exploded 8 km above the Tunguska River in Siberia. The cataclysm was calculated to have released energy equivalent to that of a 15 megaton nuclear explosion. It felled 60 million trees over an area covering 2000 square kilometers.
