Wall Street Journal: The International Monetary Fund forecast that sharply reducing greenhouse gas emissions would slow global growth, but only minimally if economic policies were designed to encourage companies to adopt low-emission strategies. The policies needed to reduce emissions by 60% from 2002 would leave the global economy about 2.6% smaller than it otherwise would be in 2040, the IMF projected. Even so, the size of the global economy would grow about 2.3 times between 2007 and 2040, the IMF …