Monarch Butterfly Numbers Fall Again
Over the last several decades, there has been a drastic decline in milkweed—the monarch caterpillar’s only food source—due to the broadscale use of the he...
Expert Blog
The latest opinion and analysis from NRDC’s science, legal, and policy experts.
Report: Monarchs, Other Species Endangered by Pesticides
How does a plant-killing herbicide affect a butterfly? Because it decimates milkweed, the only plant on which monarchs lay their eggs and on which monarch cater...
The US Needs to Do More to Save the Monarch Butterfly
And the international community should hold them to it....
A Bar Too Low: National Wolf Delisting
The U.S. Fish and Wildlife Service has been trying to cut wolves loose for the better part of a decade—and now the Trump administration is letting it happen....
Monarch Butterfly Numbers Are Up! And Down...
The yearly count of the eastern population of North American monarch butterflies increased dramatically this year. Spanning 6.05 hectares of oyamel forests, the...
Big Ag’s Unwinnable Arms Race
Glyphosate, a toxic herbicide, is under attack. But it’s not enough to develop “better” chemical weapons in our war against crop-killing weeds. We need to...