Rafael Coven Cleantech Index weathers stormy market Public cleantech companies tumbled this past quarter. But less so than other sectors, according to the manager of the CTIUS index.

February 8, 2008 - Exclusive - Biofuel proponents disagree with new studies that claim producing biofuels increases greenhouse gases because more land is being cleared.Full Story »

April 3, 2007 - News Brief - The Cleantech group rebalances its industry index, first introduced in February 2006.
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