( last updated: Jun 16, 2012 )
The author of this blog is Maurizio Morabito.
I do not “believe” in the IPCC, in the AGU, in the Hadley Centre, in 2,500 scientists and experts, in Svensmark, in Lindzen, in Crichton, in yourself, in SciAm, in American Scientist, in any skeptic or AGW believer.
I take everybody’s remarks as a step forward in the discussion and in the understanding of this or any other issue.
From that, I extract, polish, and sometimes destroy my own opinion.
(following text is by Willis Eschenbach. Republished with the author’s consent)
I also think that increasing GHGs [greenhous gases] will warm the earth … but that is not the real question to me. The real question is, how much it will warm the earth. To date, I have not seen any “useful quantitative results” regarding that question […] …
Once those quantitative results are in, we can proceed to the next question: is a warmer earth better or worse on balance?
The globe has warmed quite a bit since the 1600s, and in general this has been of benefit to humans. The sea level rise from the historical warming has not been a significant problem. In addition, a warmer world is predicted to be a wetter world, which overall can only be a good thing.
So, will warming be a problem, or a benefit? This is a very open question, and one which will be difficult to answer as some areas will win and some will lose. To date, however, recent warming seems to be occurring outside the tropics, in the night-time, in the winter … this does not seem like a bad thing.
And at some future date when those questions are answered, we can proceed to the final question, viz: If GHGs are determined to be a major cause of the warming (as opposed to land-use changes, or black carbon on snow, or dark colored aerosols, etc) and if we determine that the warming will be on balance a negative occurrence, is there a cost-effective way to reduce the GHGs, or are we better off putting our money into adaptation?
Until we can answer all of those questions, we should restrict ourselves to actions which will be of value whether or not there is future warming.
The key is to realize that all of the problems that Al Gore is so shrill about are here now with us today - floods, heat waves, famine, rising sea levels, droughts, cold spells, and all of the apocalyptic catalog are occurring as I write this.
Anything we can do to insulate the world’s population from these climate problems will be of use to everyone no matter what the future climate holds.