I'm pretty wary of geoengineering, just because we don't really know the second/third/nth-order effects geoengineering solutions might have. I'm not saying it should never be done, but I think much more research is in order before doing something that literally affects the entire planet.
 I believe I learned that from this book (which I thought was excellent), although I'm not 100% sure: https://www.amazon.com/This-Changes-Everything-Capitalism-Cl...
Naomi Klein's This Changes Everything (http://www.amazon.com/This-Changes-Everything-Capitalism-Cli...) is a must read. As Rob Nixon's Nov 2014 NY Times review states, Ms. Klein "argues that the climate crisis cannot be addressed in the current era of neoliberal market fundamentalism, which encourages profligate consumption and has resulted in mega-mergers and trade agreements hostile to the health of the environment." Amen.
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