Input (grade 13): The Clean Tech Revolution: The Next Big Growth and Investment Opportunity, is a 2007 book by Ron Pernick and Clint Wilder, who argue that commercializing clean technologies is a profitable enterprise that is moving steadily into mainstream business.
Output (grade 11): The Clean Tech Revolution: The Next Big Growth and Investment Opportunity, is a 2007 book by Ron Pernick and Clint Wilder. They say that using clean technologies is a profitable enterprise that is moving steadily into mainstream business.