Michael Tobis wrote:
> There is little doubt that the WAIS and Greenland will melt eventually
> unless CO2 concentrations are actually made to retreat.
I'm not sure how you mean this to be parsed. It is certainly doubtful
that these ice sheets will substantially melt at a CO2 concentration of
~380ppm. I would accept that is likely that they would melt were the CO2
concentration to kept above 550ppm for an indefinite period, but I'm not
sure even that would leave "little doubt". OTOH maybe your comment is
based on the (reasonable) belief that we will blow past 550ppm and far
beyond anyway.
James
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