| Dear Friend,
Parks and preserves are key to protecting critical species and habitats. But the climate crisis is shifting ecosystems and pushing necessary foods outside of park borders, leaving many animals increasingly vulnerable to starvation. We know from studying island habitats that remote, small islands are hotbeds of extinction. Under assault from development, hunting, and livestock grazing, even our largest parks and preserves have become isolated islands.
The latest edition of Sierra magazine tells the story of Yellowstone to Yukon -- a project that was born from the idea that to save these vulnerable species, we must save their habitat. Even more importantly, those habitats must be connected. This project is one of many globally and envisions a 59-million-acre pathway stretching from the Greater Yellowstone Ecosystem to the Canadian Yukon.
This rewilding plan would tackle two of our biggest challenges: shrinking biodiversity and the climate crisis. These corridors allow animals room to migrate and transfer genetic material to other populations, boosting their resilience.
One of these keystone species is grizzly bears, an essential piece of the American West and a wildlife icon integral to the Yellowstone region for centuries. They embody true wilderness. However, officials and appointees in Wyoming, Idaho, and Montana are working to remove Endangered Species Act protections for grizzlies. This will hinder their continued recovery and allow for more killing of bears, both by ranchers and through the return of trophy hunts.
Will you submit a public comment to the U.S. Fish and Wildlife Service to protect these animals? | 
