//
Not so. The Medieval Warm Period was around 2 to 3 degrees Celsius warmer than today. And the rate of warming that we see today is nothing unusual from what we have seen in the past. //
Please can you provide your sources for this, because all of the sources I see are describing exactly the opposite. There may have been some local regions where the average temperature during the MWP was higher than in the same region today, but as a global average there's no comparison: and ditto the statement that current warming is "nothing unusual" is counter to current accepted data. If you can provide a source that conclusively demonstrates otherwise, then I am sure that I -- and, for that matter, all other scientists -- would love to see it.
// Please give me the evidence that man-made carbon dioxide is being “destructive”. Even the IPCC don't make that claim. //
You have misread my sentence. I was speaking about climate change in general, and you may want to bear in mind that in the sentence you quoted I said "climate change" not "man-made carbon dioxide". I appreciate that you disagree with me, but it makes sense to disagree with what I actually say, not with what you think I was saying. There's no argument to be had that climate change, in general, doesn't affect wildlife and drive extinctions, thus contradicting your rather confusing reference to creatures that exist today having survived the changes in climate over the last millennia. I mean, wouldn't the demise of creatures such as the Woolly Rhino, Mastodons, etc, etc, rather go against that point? I just don't see why you feel the need not only to dispute the existence of anthropogenic climate change while also arguing that it wouldn't matter anyway.
Similarly, there's no sense in disputing that there is at least some link between CO2 and temperatures. CO2 is a greenhouse gas. If there were no such gases in Earth's atmosphere we'd freeze; on the other hand, if the earth's atmosphere had as much CO2 as Venus does then the temperature would be not that different from Venus. In between these two extremes, the link is of course far from linear, and other effects play a role, it is true, but nevertheless there is no logic in denying that rapidly increasing the concentrations of CO2 will have an impact on temperature. It won't be linear -- few things in science ever are -- but it won't be zero either.
Your last paragraph is just utter guff.