http://media.cleantech.com/people/rafael-coven The taxonomy view with a depth of 0. en http://media.cleantech.com/2721/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. http://media.cleantech.com/2721/cleantech-index-weathers-stormy-market#comments Clean Harbors Comverge Energy Conversion Devices Energy efficiency EnerNOC First Solar Grid improvement International Rectifier LDK Solar Lindsay Manufacturing Martek Bioscience Polypore Power Integrations Power-One Rafael Coven Solar SunPower Suntech Water Fri, 18 Apr 2008 22:12:05 -0400 Dallas Kachan 2721 at http://media.cleantech.com http://media.cleantech.com/2427/biofuel-industries-call-studies-naive-nature-conservancy-princeton Biofuel proponents disagree with new studies that claim producing biofuels increases greenhouse gases because more land is being cleared. http://media.cleantech.com/2427/biofuel-industries-call-studies-naive-nature-conservancy-princeton#comments Exclusive articles Benefuel Bill Summer Biofuels BP Chris Somerville Earth Policy Institute Jonathan Dorn Rafael Coven U.S. West Fri, 08 Feb 2008 17:39:24 -0500 Massie Santos Ballon 2427 at http://media.cleantech.com http://media.cleantech.com/971/cleantech-group-prunes-its-industry-ind The Cleantech group rebalances its industry index, first introduced in February 2006.<br /> http://media.cleantech.com/971/cleantech-group-prunes-its-industry-ind#comments Cleantech Group Rafael Coven Tue, 03 Apr 2007 12:10:43 -0400 Dana Childs 971 at http://media.cleantech.com