29 Mar '12, 4pm

Is a carbon-negative economy a practical possibility or a pipe dream?

Is a carbon-negative economy a practical possibility or a pipe dream?

“Let’s not simply reduce the CO2 emissions going up into the atmosphere. Let’s draw them down.” So says Robert Brown , a professor of engineering at Iowa State University and a leader of the university’s Initiative for a Carbon Negative Economy and its Bioeconomy Institute . Those are interdisciplinary campus efforts to develop ways to remove carbon dioxide from the atmosphere by growing plants or algae, making them into fuels and burying their carbon residues in soil -- a nd make money doing it. The notion that we can generate wealth and remove CO2 from the air is obviously appealing. As atmospheric concentrations of CO2 rise and climate risks grow, so does the need for carbon-negative technologies that pull CO2 from the air, as plants do, and then store it underground or deep in the ocean. But is this practical or a pipe dream? That’s what Brown and his colleagues at Iow...

Full article: http://www.greenbiz.com/blog/2012/03/29/carbon-negative-e...

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