Dr. David Keith ~ 2001 "The post-war growth of the earth sciences has been fuelled, in part, by a drive to quantify environmental insults in order to support arguments for their reduction. Yet paradoxically the knowledge gained is increasingly granting us leverage that may be used to deliberately engineer environmental processes at planetary scale. The manipulation of solar flux using stratospheric scatterers is perhaps the best example of this leverage: we could reduce solar input by several per cent — probably sufficient to initiate an ice age — at an annual cost of less than 0.01% of global economic output1,4. As remedies for the CO2–climate problem, all proposed geoengineering schemes have serious flaws. Nevertheless, I judge it likely that this century will see serious debate about — and perhaps implementation of — deliberate planetary-scale engineering." 2001 Macmillan Magazines Ltd ~ NATURE|VOL 409 | 18 JANUARY 2001 |nature
Posted on: Fri, 16 Aug 2013 06:04:22 +0000