You may be reading the graphs more carefully than I am.  For <i>anomalies</i> since 2006, I am skeptical because it looks to me like the current administration has NASA, NOAA, EPA, or whatever cooking the books.<p>From you is the first I&#x27;ve heard that CO2 levels decreased during the Little Ice Age (LIA).  Makes some sense -- it was darned cold then which means less biological activity.<p>But there is a cute point:  During the LIA, no doubt a lot of people were burning everything they could find to stay warm and, thus, emitting more CO2.  Still, CO2 concentrations went down.  Gee!<p>The biggie point about the LIA is the Maunder Minimum:  That is during the LIA, the sun had nearly no sun spots.  Then that agrees with the model in the YouTube video with the URL I gave that claims that the cause of climate change is changes in the rates of sun spots.  Just why sun spots could change climate (not really that the sun might be hotter) is explained in the video.<p>The <i>model</i> in that video is not really <i>predictive</i> if can&#x27;t predict sun spots.  At times in the past could do that since there was a definite cycle to sun spots, and the period was right at 11 years.  Then, if from such a cycle can predict sun spots, then can use that model to predict climate.<p>To me now, a question is, what the heck are the sources of the rise in CO2 concentrations of the past, say, 100 years?  While I&#x27;m not convinced that the CO2 levels now are affecting the climate, I&#x27;d still like to know where the CO2 is coming from.  So, there is a big system with some parts emitting CO2 <i>sources</i>, and others taking it in, <i>sinks</i>.  One source is volcanoes, and maybe over half of those are in the ocean.  Supposedly another source is sea water:  So the warming, from wherever, is slowly heating the ocean, and warmer water absorbs less CO2.  So, maybe left over from the LIA, the oceans have a lot of CO2 and as the climate warms from whatever causes are releasing that CO2.  The estimates I&#x27;ve seen for the amount of CO2 from human activities has too much variation to take seriously.  Then the estimates of CO2 from other sources also has huge variation.<p>Ah, back to work.