Manu--Given that the observed preindustrial global baseline is not all that well known, 2 F above present (of course, one has to worry how that is precisely defined as well) may be a more definitive target than 2 C above the baseline. Of course, one could base the changes all on calculations in models, but that introduces other complications. And does India us degrees F‹a bit strange to give them a change they would not understand.
But, I agree, it certainly has the potential to be confusing. Best, Mike On 9/21/09 11:43 PM, "Manu Sharma" <[email protected]> wrote: > On Tue, Sep 22, 2009 at 7:56 AM, Mike MacCracken <[email protected]> wrote: >> 2 C above preindustrial is the official goal by the leaders. We have warmed >> by 0.8 C, so that means we have about 1.2 C to go. Convert that by >> multiplying by 1.8, and that gives a bit over 2 F to go from present warming. > > Mike, > > The paragraph I quoted does not contain the phrase "above present temperature" > when it refers to 2F rise. I now see that this phrase is included further up > in the article in the second para where it says: > >> ... the [Indian] government was pilloried at home last summer for accepting >> the international goal of preventing a global temperature rise of more than 2 >> degrees Fahrenheit above present temperatures by limiting emissions. > > The above implies that the Indian government has accepted the 2F target above > present when in fact it signed up to limiting temp rise to 2C over > pre-industrial temperature. > > While technically, there may be little difference but for accuracy sake and > for the sake of avoiding needless confusion, I think it's better to stick to > the facts as they are and in the form they can be best understood. > > Thanks, > Manu > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en -~----------~----~----~----~------~----~------~--~---
