Why Company Carbon Cuts Should Include ‘Scope’ Check

When a company pledges to cut its carbon emissions, how big a deal is it? That depends on what’s being counted. An oil company’s direct emissions – those from its trucks, drills and facilities – are only a sliver of the carbon released when the fuel it sells is burned, and an airport vowing to use wind power for its runway lights is making a much smaller commitment than if its promise covered the flights that take off there. As more investors take environmental factors into account, what had bee