"Several of the nation's most prominent environmentalists have gone public with the message that nuclear power, long taboo among environmental advocates, should be reconsidered as a remedy for global warming," the New York Times' Felicity Barringer reports. And while environmentalists who support nuclear power as a supposedly "emission-free" alternative to fossil fuels are not representative of the larger movement, the buzz about them is mushrooming. "Their numbers are still small, but they represent growing cracks in what had been a virtually solid wall of opposition to nuclear power among most mainstream environmental groups," writes the Times.