The social impact of this is huge, and it's far from being an abstract academic issue. The arctic is a 'far away' problem, whereas people riot about drought, and may start wars.
We need to ensure governance does not cow tow to short term panic, and also that precip changes are managed properly within the economic, trade and aid system. It would be great to see some social science wonks address this. A On Aug 25, 2011 4:37 PM, "Ken Caldeira" <[email protected]> wrote: > A new paper was published today: > > MacMynowski, D. G., H. Shin, and K. Caldeira (2011), The frequency response > of temperature and precipitation in a climate model, Geophys. Res. Lett., > 38, L16711, doi:10.1029/2011GL048623. > > The main relevances of this paper for sunlight reflection methods can be > seen in Figure 3 and 4. > > Figure 3 shows that for rapid changes in radiatve forcing (such as Mt. > Pinatubo), the largest temperature response is over land, but for sustained > changes in radiative forcing, the largest temperature response is in the > Arctic. > > Figure 4 shows that for rapidly changing forcing, such as might occur after > a volcanic eruption, precipitation over land changes much more rapidly than > does global mean temperature, so short term events will have much greater > precipitation changes over land relative to temperature changes than would > occur if the radiative forcing were sustained. Thus it may be misleading to > look naively at the after-affects of Mt. Pinatubo as a good indicator of the > relationships between precipitation changes and temperature changes that > would occur following a sustained SRM deployment. > > This is an admittedly fairly abstract climate-science paper, but it is > nonetheless it has relevance to issues that concern this group. > > 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 > > See our YouTube: > Carbon dioxide emissions embodied in international > trade<http://www.youtube.com/watch?v=JOj_YScv7WY> > Past land use decisions and the mitigation potential of > reforestation<http://www.youtube.com/watch?v=Bmyek4gYEUk> > Near Zero videos <http://dge.stanford.edu/labs/caldeiralab/Near_Zero.html> > > -- > 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. > -- 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.
