total biological and ecosystem diversity is likely not to rebound for millions of years
Why are you assuming that the "total biological and ecosystem diversity" will diminish and what metric are you using for it?
Some ecosystems are liable to collapse and be replaced by dramatically impoverished systems, not just in terms of diversity, but in terms of total biological productivity.
Wouldn't the reverse also happen -- some "impoverished" systems will get replaced by highly productive ones?
Besides, is having a low-biological-productivity ecosystem bad in itself?
When mass extinction events occur
Are you claiming that the climate change (as envisaged, say, by the latest IPCC projections) is going to be a mass extinction event?
Why are you assuming that the "total biological and ecosystem diversity" will diminish and what metric are you using for it?
My metrics for "total biological and ecosystem diversity" are the total numbers of ecosystems and species, and the degrees to which they're represented. As for why I'm "assuming" they will diminish, this the conclusion, not the presumption, of most of the research in that area.
In broad terms, we should expect this kind of thing to happen because so many species are adapted very strongly to very specif...
Note: Please see this post of mine for more on the project, my sources, and potential sources for bias.
I have written a couple of blog posts on my understanding of climate forecasting, climate change, and the Anthropogenic Global Warming (AGW) hypothesis (here and here). I also laid down the sources I was using to inform myself here.
I think one question that a number of readers may have had is: given my lack of knowledge (and unwillingness to undertake extensive study) of the subject, why am I investigating it at all, rather than relying on the expert consensus, as documented by the IPCC that, even if we're not sure is correct, is still the best bet humanity has for getting things right? I intend to elaborate on the reasons for taking a closer look at the matter, while still refraining from making the study of atmospheric science a full-time goal, in a future post.
Right now, I'm curious to hear how you formed your views on climate change. In particular, I'm interested in answers to questions such as these (not necessarily answers to all of them, or even to only these questions).