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The importance of being informed : Comments
By James Fairbairn, published 13/8/2009It is important that each of us does our research and makes an informed decision about climate change.
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Six climate changes in the last 6000 years in tree rings., June 2, 1999
By A Customer
This book reads like a detective story where the plot slowly unfolds. In the beginning it describes the use of tree rings to date old wood in buildings, paintings, ships and other archeological specimens. By a huge collaborative effort by many tree ring scientists it has been possible to establish almost continuous tree ring patterns over 6000 years in bristlecone pine, oak, and other species. Most variations in ring width is due to local conditions. However, six peculiar worldwide, decade long episodes of reduced growth has become evident, for example around 1628 BC and 540 AD. The archeologist Baillie compares this with Chinese, Egyptian and other history, with the Bible and with myths from all over the world, and with what is known of climate changes, volcano eruptions, analyses of Greenland ice cores and the probability of impacts of comets and asteroids. The 1628 BC event may or may not be explained by the Santorini explosion, and perhaps it caused the 10 plagues of Egypt and the exodus. The 540 AD event coincided with plagues in Constantinople, "dry fog", very pale sun and famine and with the myths of King Arthur. What caused this to happen? Baillie examines the various lines of evidence and ends up with collisions with comets and asteroids as the most likely explanation. Will it happen again and what should we do? Stock up on food like in Egypt under Moses before exodus or hit the comets with nuclear weapons?
Nothing like a good story to keep the attention focused