The golden-winged warbler’s population is plummeting, fueled in part by habitat loss. Fire can help create the young forests the birds need to nest.

The group says Gov. Tom Wolf promised to help people who say they’ve been harmed by fracking, and hasn’t delivered. A spokesman said Wolf has taken a ‘balanced approach’ to the industry.

If nuclear plants close, carbon emissions are likely to rise. Yet environmentalists have opposed nuclear power over concerns including radioactive waste.