Fighting coal and fighting natural gas are two different battles. And environmental groups disagree on how and when to fight those battles. While national environmental groups trained their attention on coal, groups outside the capital came to see natural gas as at least an equal threat, both because gas drilling threatens water and air quality and because switching from coal to gas will not decrease carbon emissions enough to scale back the worst climate change threats. The gas industry has little interest in addressing either of those issues. National environmental groups are pushing back harder on the gas industry than they were, but not hard enough for some grassroots groups.