Promoting Alternative Energy Without Being Too Green - New York Times

"It’s about money, Mr. Parker said. And venture capitalists are clamoring to get in. In the first two quarters, venture capitalists invested $379 million in 30 cleantech companies, according to the National Venture Capital Association. That is up from $230.8 million in 27 companies in all of 2005.
The fervor is so strong, some critics say, that the cleantech label is being attached to concepts that only marginally fill the bill, and the phenomenon is eliciting gentle mockery in some quarters."