Ken - I don't consider that far afield at all: I think it's 100% central to what this site should be about, since geoengineering and emissions policies need to be properly constructed together and be complimentary. It looks great & I can't wait to read it in more detail. Cheers, Nathan
On Feb 17, 12:09 pm, Ken Caldeira <[email protected]> wrote: > Folks, > > The attached paper is a little far afield for this group, but it indicates > some of the challenges associated with reducing the amount of warming that > might occur this century through transformation of our energy system. > > Particles in the stratosphere change planetary radiative forcing very > rapidly, whereas changes in emissions change the rate of change of > radiative forcing, but do not substantially change radiative forcing on a > short time scales. > > Furthermore, in, for example, a 40 year linear transition from coal to, > say, solar power, only about 1/4 of the avoided emissions come in the first > 20 years while 3/4 of the avoided emissions occur in the second 20 years. > If you combine this with lag times introduced by thermal inertia in the > oceans, you can see that only rapid transitions to the lowest emitting > technologies can have a substantial effect on climate later this century. > > The paper is "open access" and is also available here (along with > supporting online material):http://iopscience.iop.org/1748-9326/7/1/014019 > > We have also made a little YouTube > video:http://www.youtube.com/watch?v=a9LaYCbYCxo > > A journalistic account can be found > here:http://environmentalresearchweb.org/cws/article/news/48649 > > Best, > > Ken > > _______________ > Ken Caldeira > > Carnegie Institution Dept of Global Ecology > 260 Panama Street, Stanford, CA 94305 USA > +1 650 704 7212 > [email protected]http://dge.stanford.edu/labs/caldeiralab @kencaldeira > > *YouTube:* > Crop yields in a geoengineered > climate<http://www.youtube.com/watch?v=-0LCXNoIu-c> > Influence of sea cucumbers on a coral reef CaCO3 > budget<http://www.youtube.com/watch?v=-FSd4zy8iMo> > > Myhrvold_Caldeira_ERL2012.pdf > 2236KViewDownload -- 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.
