EcoWatch: Its no secret that since the U.S. Supreme Courts 2010 Citizens United decision approved unrestricted campaign spending by corporations, elections have been drowning in a flood of whats referred as dark money. Much of it has been passed through so-called social advocacy groups, such as the Koch Brothers-founded Americans for Prosperity, which dont have to reveal the source of the money they spend electing climate deniers to office. So we dont really know how much corporate money is being poured...