Dreaming the Possible Dream


Recession economies engender a sense of malaise and stagnancy, but two innovative men are working to find affordable, scalable solutions to current issues. Instead of worrying about CO2 emissions, Vinod Khosla imagined how to turn them into calcium carbonate to be used as concrete aggregates for building walls and highways. Another, K.R. Sridhar, is marketing clean fuel cells to huge American companies.

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