In June of 1979, US President Jimmy Carter announced his program to increase the country’s use of solar energy, including increased funds for solar R&D.

In June 1980, Carter signed the Energy Security Act, which included acts related to biomass, renewable energy, solar, geothermal and ocean thermal. Sound familiar?

So what is new about the cleantech revolution. In this video, venture capitalists from Greenvest 2007 weigh in on the past and future of cleantech.