The Cleantech Forum, an annual conference bringing together green-focused companies and investors, has acquired a distinctly global appearance this year. Business leaders launched a new organization designed to boost green startups in India; and Singapore and Abu Dhabi courted investors, suggesting theyd be ideal locations for this "industry of the future" to grow.

According to the San Francisco Chronicle, its a seriously hot business—green companies won nearly 50 percent of a total of $3.95 billion venture capital funding last year.