Task: Sentence Expansion
Input (English): The Clean Tech Revolution : The Next Big Growth and Investment Opportunity , is a 2007 book by Ron Pernick and Clint Wilder .
Output (English): The Clean Tech Revolution : The Next Big Growth and Investment Opportunity is a 2007 book by Ron Pernick and Clint Wilder , who say that commercializing clean technologies is a profitable enterprise that is moving steadily into mainstream business .