I’m doubtful that we have the knowledge to do anything more than reducing our impact. If we did something like start sequestering CO2 in the ocean, we could make things much, much worse. And if we based our decisions on this most recent study, we’d start burning dirty diesel or something, creating sun-reflecting particulates in the atmosphere while producing oh-so-helpful acid rain.

I’m inclined to believe that we are a lot more ignorant than certain pundits would like us to believe. There are factors at work relating to the climate, both man-made and natural, that we barely know exist let alone understand in any way. I don’t think we would be wise to start huge projects, other than efforts to reduce our impact, to “engineer” the climate.