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Beware of climate change
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<blockquote data-quote="Nick Wagner" data-source="post: 1680426" data-attributes="member: 25329"><p>Some thoughts. The Planet of the Humans video has ten million views on YouTube, so it has gained some traction. I did not agree with everything in the movie, but much of it was spot on. I tried to watch a rebuttal last night but couldn't get to the end, they were rabid fanatics.</p><p></p><p>Scientists now believe that some 20,000 to 100,000 years before the Cretaceous-Paleocene mass extinction event, the one that killed off the dinosaurs 66 million years ago, the Earth's temperature started dropping. The Deccan Traps, a huge flood of lava in what is now India, started erupting about 250,000 years before the boundary. It is believed a meteorite some ten kilometers wide struck near the Yucatán peninsula of Mexico, throwing debris all the way to central Alberta and cooling the Earth by an estimated six degrees centigrade for at least a decade. The main flow of the Deccan Traps occurred in this same time frame, but then continued for another 500,000 years. This is a much more complex story than has been told since the Chicxulub crater was discovered. It is estimated it took plant life 5,000 to 100,000 years to recover, and animal life 400,000 to 1,000,000 years to recover, excluding most of the poor dinosaurs.</p><p></p><p>My point is scientists are continuing to learn, our knowledge evolves as discoveries are made. Personally, I have trouble believing that atmospheric carbon increasing by 100 ppm is having any effect whatsoever, as scientists say it has been at 10,000 or even 12,000 ppm in the past.</p><p></p><p>I better get to work,</p><p>Nick</p></blockquote><p></p>
[QUOTE="Nick Wagner, post: 1680426, member: 25329"] Some thoughts. The Planet of the Humans video has ten million views on YouTube, so it has gained some traction. I did not agree with everything in the movie, but much of it was spot on. I tried to watch a rebuttal last night but couldn’t get to the end, they were rabid fanatics. Scientists now believe that some 20,000 to 100,000 years before the Cretaceous-Paleocene mass extinction event, the one that killed off the dinosaurs 66 million years ago, the Earth’s temperature started dropping. The Deccan Traps, a huge flood of lava in what is now India, started erupting about 250,000 years before the boundary. It is believed a meteorite some ten kilometers wide struck near the Yucatán peninsula of Mexico, throwing debris all the way to central Alberta and cooling the Earth by an estimated six degrees centigrade for at least a decade. The main flow of the Deccan Traps occurred in this same time frame, but then continued for another 500,000 years. This is a much more complex story than has been told since the Chicxulub crater was discovered. It is estimated it took plant life 5,000 to 100,000 years to recover, and animal life 400,000 to 1,000,000 years to recover, excluding most of the poor dinosaurs. My point is scientists are continuing to learn, our knowledge evolves as discoveries are made. Personally, I have trouble believing that atmospheric carbon increasing by 100 ppm is having any effect whatsoever, as scientists say it has been at 10,000 or even 12,000 ppm in the past. I better get to work, Nick [/QUOTE]
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