A local academic has emerged as the leading source of dark forecasts in a recession-fueled debate over whether California's war on global warming will hurt or help its economy. Sanjay Varshney, dean of the business school at California State University, Sacramento, predicts dire consequences if the state moves forward with plans to cut greenhouse gas emissions. His figures – dismissed by some economists – have been cited by business groups and politicians calling on the state to delay carrying out AB 32, the state's landmark climate change law. In a July paper paid for by the California Small Business Roundtable,...