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Originally Posted by caliboy1994
Also, Yug, I find it interesting how all of these studies were done during or before 1974, when we knew less about how the Earth's climate systems work. Sure, some of them pointed towards global warming, but their predictions on the effects of this were inaccurate at best. Yes, there was a small cooling trend from the '40s to the '60s, but this was not caused by man, it was the result of a natural climate cycle called the Pacific Decadal Oscillation that occurs every few decades. The Earth's biosphere and atmosphere and the ways they interact are so complex that back then we didn't even have much of a rudimentary understanding of it. Now, we have worlds of more knowledge regarding how our planet works, so we are able to make predictions and measurements that are orders of magnitude more accurate. That, coupled with the reversal of the PDO (which coupled with manmade climate change produced a more pronounced warming effect), is why we see a large shift in the scientific consensus beginning in the 1970s.
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The issue is that we still don't know very well how Earth's climate system works. I used to believe, like you, in global warming while I was in college because it was in the textbooks and because it was "peer reviewed." Students aren't taught to question what is in the textbook, it is taken as gospel. If global warming on earth is caused by man, why is it that Mars is also experiencing a warming period?:
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Earth is currently experiencing rapid warming, which the vast majority of climate scientists says is due to humans pumping huge amounts of greenhouse gases into the atmosphere
Mars, too, appears to be enjoying more mild and balmy temperatures.
In 2005 data from NASA's Mars Global Surveyor and Odyssey missions revealed that the carbon dioxide "ice caps" near Mars's south pole had been diminishing for three summers in a row. (This comes from the right wing National Geographic)
Mars Melt Hints at Solar, Not Human, Cause for Warming, Scientist Says
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If the arctic ice caps are melting and Mar's south pole ice caps are melting also, then humans must also be causing the warming on Mars also under the current climate science theory.