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Date : 2008-03-25

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Under a Green Sky Global Warming the Mass Extinctions of ~ Heres Wards summary of how global warming greenhouse mass extinctions occur The hydrogen sulfur gas rises into the high atmosphere where it breaks down the ozone layer and the subsequent increase in ultraviolet radiation from the sun kills much of the photosynthetic green plant phytoplankton

Under a Green Sky Global Warming the Mass Extinctions of ~ Subtitle Global Warming the Mass Extinctions of the Past and What They Can Tell Us About Our Future A little over 200 million years ago there was this Thing called the PT event aka PermianTriassic Extinction Event About 54 of all families of species were completely exterminated

Under a Green Sky Peter D Ward Paperback ~ More than 200 million years ago a cataclysmic event known as the Permian extinction destroyed more than 90 of all species and nearly 97 of all living things Its origins have long been a puzzle for paleontologists and during the 1990s and the early part of this century a great battle was fought between those who thought that death had come from above and those who thought something more complicated was at work

Under a Green Sky Global Warming the Mass Extinctions of ~ Under a Green Sky Global Warming the Mass Extinctions of the Past and What They Can Tell Us About Our Future Peter D Ward By looking backward at the course of great extinctions a paleontologist sees what the future holds

Under a green sky global warming the mass extinctions ~ More than 200 million years ago a cataclysm known as the Permian extinction destroyed nearly 97 percent of all living things Its origins have long been a puzzle

Under a Green Sky Global Warming – the Mass Extinctions ~ In past mass extinctions volcanic eruptions and thawing methane hydrates created greenhousegas warmings that culminated in the release of poisonous gas from oxygendepleted oceans Humans with their fossil fueleating machines are unwittingly producing the same conditions today

Under a green sky global warming the mass extinctions ~ Under a green sky global warming the mass extinctions of the past and what they can tell us about our future Peter D Ward More than 200 million years ago a cataclysm known as the Permian extinction destroyed nearly 97 percent of all living things

Climate Change Book Review Under a Green Sky Read the ~ They exist in a place that changes the very colour of the sky itself We are under a pale green sky and it has the smell of death and poison We have gone to the Nevada of 200 million years ago only to arrive under the transparent atmospheric glass of a greenhouse extinction event and it is poison heat and mass extinction that are found in this greenhouse’

Peter Ward paleontologist Wikipedia ~ According to Wards 2007 book Under a Green Sky Global Warming the Mass Extinctions of the Past and What They Can Tell Us About Our Future all but one of the major mass extinction events in history have been brought on by climate change The author argues that events in the past can give valuable information about the future of our planet