The American Denial of Global Warming - Perspectives on Ocean Science
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Uploaded on Dec 20, 2007
Polls show that between one-third and one-half of Americans still believe that there is "no solid" evidence of global warming, or that if warming is happening it can be attributed to natural variability. Others believe that scientists are still debating the point. Join scientist and renowned historian Naomi Oreskes as she describes her investigation into the reasons for such widespread mistrust and misunderstanding of scientific consensus and probes the history of organized campaigns designed to create public doubt and confusion about science. Series: "Perspectives on Ocean Science" [12/2007] [Science] [Show ID: 13459]
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All Comments (51,279)
Vickers Field 3 hours ago
yes, the man is very competent with Ctrl + C, Ctrl + V - please give credit where its due! :-)
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TheRealArchAngel 20 hours ago
"Surface cools to, say,16.0 and that starts."Global Warming""
err
Ice ages happen cause the earth's core is like a pressure cooker...by time we reach 18c average all the built up heat and preasure powering Plate techtonics and Interglaciation is spent and the Core tempature wanes slowing heat venting to surface and slowing plate tectonics and Earths AGT drops to 12c in time
At this point heat and preasure builds under slowed plate tectonics which speeds it up and start's Interglaciation again
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TheRealArchAngel 20 hours ago
"That slight surface cooling, say 15.9, will restart "Global Warming" because cooler surface radiates less to space"
Average Global temppature is 15c, just like like it's been for last 10,000 years
Local Climate region variability on Tempature variance is +3 Polar,+2 Sub-polar,+1 Uppper Temparate, -1 lower Temparate,-2 Sub-Tropics and -3 Tropics
Ice Age AGT is 12c, Intergacial average peak is 18c.we've been stuck at 15c for 10,000 years allowing for human civilization development
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PrairleDoggedRez 3 days ago
Have I not just seen the very same sermon on another video? Spam !!
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grindupBaker 4 days ago
enough radiation, and so on for centuries (longest leg of THC Global Ocean Conveyor takes 1,600 years for 1 cycle). We've already seen a taste of this, surface temperature went up a lot for 3 decades or so, then the oceans took down a smidgin more heat for a decade & surface temperature increase flattened. It'll take a few centuries to mix the ocean heat. Deepest 80% ocean is avge. ~4.4 degrees and that will rise to ~6.6 degrees with my example. It's because ocean has 97.4% of ecosystem
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grindupBaker 4 days ago
(less coal, more soil vegetation etc.) then surface might reach 16.1C quickly and stay near there but the ocean will keep taking heat down, cooling the surface slightly. That slight surface cooling, say 15.9, will restart "Global Warming" because cooler surface radiates less to space. It'll reach 16.1 again & "Global Warming" will pause. Later, ocean will take another smidgin of heat down. Surface cools to, say, 16.0 and that starts."Global Warming" again because it must stay at 16.1 to maintain
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grindupBaker 4 days ago
No impartial lay person will ever grasp this topic unless they realize that "Global Warming" is an increase in the ocean heat content (deep ocean temperature). For example if "final" (exc. natural periodic vagaries) CO2x2 average surface temperature of 16.1 degrees C is required in order to balance in&out TOA radiation (debate-neutral mid point of "best estimates" skeptic Dr. Lindzen +1.6 & pro Dr. Hansen +2.8) and this happens, say, at 2100 and then humans decide to use diverse means
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