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Message: <blockquote data-quote="Umbran" data-source="post: 6684668" data-attributes="member: 177">We can start here:  <a href="https://en.wikipedia.org/wiki/Ice_age" target="_blank">https://en.wikipedia.org/wiki/Ice_age</a>Specifically, with this graphic, which shows the pattern of temperature over time for glacial periods, as well as CO2 and dust concentrations for the same times:<a href="https://en.wikipedia.org/wiki/Ice_age#/media/File:Vostok_Petit_data.svg" target="_blank">https://en.wikipedia.org/wiki/Ice_age#/media/File:Vostok_Petit_data.svg</a>Let me see if I can attach that:[ATTACH]69841[/ATTACH]The 0 of time at the right is the present, and time goes farther back into the past as we go further left.  The end of the last glacial period is the low near the right end of the graph.  In this, we can see that "warming since the end of the glacial age" is not the usual pattern.  A glacial period ends in a sharp snap of rising temperature, and then an overall slow cooling down into the next glacial period. We had the sharp rise some 11,000 years ago or so, and we should have been in a cooling trend into the next glaciation period.We can see, in fact, that our current temperatures are near the highest we typically get for the current epoch.  For the past 400,000 years or so, Earth has been spending most of its tie much cooler than it is right now, not warmer.</blockquote>