InsideClimate News: Environmental activists who have been campaigning for three years to get New Jersey to rejoin a regional cap-and-trade system have a potent new ally: Organizing for Action, President Obamas grassroots lobbying operation. OFA's role in the New Jersey fight showed up as the state held a hearing on Friday on its controversial exit three years ago from the Regional Greenhouse Gas Initiative, or RGGI, a carbon trading pact. The hearing was called after a state judge ruled earlier this year that Gov....