The belief system that is Catastrophic Anthropogenic Global Warming (CAGW) has had a rallying cry for years: “Do away with the Medieval Warm Period!” It’s understandable why they would want to – indeed have to – eliminate the Medieval Warm Period. If let stand, the Medieval Warm Period provides two crushing blows to CAGW: first, that current warming is unprecedented, and second, that the rate of warming is unprecedented.
Of course, if increased levels of the trace atmospheric gas, carbon dioxide, must be the driver of warming, the current warming and its rate must be unprecedented. Otherwise, previous periods of rapid warming would have to be due to something other than rising levels of atmospheric carbon dioxide.
Therefore, there cannot be any previous periods of rapid warming, meaning there cannot be a Medieval Warm Period.
Or a Roman Warming.
Or the even warmer Holocene Climate Optimum.
While we’re at it, there can’t be a Little Ice Age, either.
Because a Little Ice Age would just set the stage for the current warming to be properly considered a natural change back to warming from a cold period.
Or another way to look at the Little Ice Age: If increased carbon dioxide causes warming, then reduced carbon dioxide must cause cooling.
Why? If the increased carbon dioxide causes warming, then to cool things the carbon dioxide level in the atmosphere must go down, right? Or do you think that cooling is caused by something else?
If you do, doesn’t that open the possibility that warming is caused by something else, too?
However, the warmists have a way out. They contend that the Medieval Warm Period was just a local – a European – phenomenon.
Hundreds of studies prove otherwise, but the warmists then contend that the studies are all bought and paid for by Big Oil. BP, for instance.
BP, of course, was spending great piles of money promoting itself as the greenest of green energy companies, and having nothing to do with CAGW skeptics.
However, we’ll let the warmists have their mythologies, because another very important source has recently been heard from, China (for this eye-opening study, click here).
Chinese scientists reconstructed temperatures from a variety of proxies covering the past 2,000 years, and found periods when warming was greater and more rapid than the present.
As previously mentioned, there are hundreds of studies that find the same, it’s just that these Chinese studies are conveniently separated from Europe and from Western culture Big Energy influences.
There are not many places left for the CAGW to find cover. At the moment they are as exposed as Al Gore in Portland.
Let them try to massage this!