Green Funds: Less Than Meets the Eye

Ways to invest in environmentally focused vehicles are still limited, and portfolios may harbor a few surpriseslike oil and casino stocks

Green investing isn't such a lonely pursuit anymore. With society's greater emphasis on renewable energy sources and technologies to limit greenhouse gas emissions—witness Al Gore's conquering-hero status at this year's Oscar awards as he picked up a statuette for his climate change documentary An Inconvenient Truth—there is increasing attention paid to this approach.

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