Christian Science Monitor: Everyone it seems has been investing in green energy – from Google to ExxonMobil. But this year the booming sector is suddenly in a serious funk. So is this time to get out – or jump in and snap up some long-term winners? To find out, the Monitor’s Laurent Belsie recently talked with three experts who closely follow the field: Matt Patsky, portfolio manager of the Winslow Green Growth Fund, Paul Hilton, director of advanced equity research at Calvert, and Eric Becker, portfolio manager with …