On Sat, Feb 8, 2014 at 6:08 AM, William Calvin <[email protected]> wrote: > > Solar radiation management will have a big problem: an uneven application > will rearrange the winds and thus precipitation. Guess who they will blame > for the droughts.
Let's think about droughts. Reducing the effect of rainfall on food production is an old idea. It's called irrigation. But to make irrigation long term independent from climate takes lots of capital and prodigious amounts of energy, to desalinate sea water and pump it thousands of miles inland. Or to take a Mississippi flood, clean out the silt and pump it into the Ogallala Aquifer or over to the Colorado River (or both). A really rich society could do that, especially one with oceans of very low cost energy. Should we put some numbers on what it would take? Keith PS BIo char from any source is darn good idea, even if we didn't need to remove carbon. PPS Andrew, it would help readability if you could preserve the paragraph breaks. -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/groups/opt_out.
