I'll give it a look see Mark. In the meantime, I agree that unless there are some major shifts in how we make electricity, i.e. low to 0 carbon, we are doomed to some fairly nasty shifts in temps and sea levels.
I was watching a climatologist on Real Time last Friday who was predicting a 70 ft. rise by the end of the century instead of the 6-7 ft. that everyone else is predicting. That put's my home 15 feet under the Pacific ocean
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It appears to me that McPherson is doing a little of his own fear-mongering which is counterproductive to working towards a whole series of solutions. I guess that's my objection to his message. It's too fatalistic.