Everywhere you look these days, people are talking about green cars, green energy, greenhouse gases and even green mutual funds. This new demand for all things green is enough to make some money managers green with envy.

"You can't turn on the TV, read a newspaper or ride on a subway without hearing someone talking about green this or that," said Rob Thomas, founder and president of Social(k), a provider of socially responsible funds. "The awareness of sustainable, responsible behavior is growing, especially with the younger generation."

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