A conservation group acquired more than 1,500 acres just north of Yellowstone National Park to stop a gold mine that they say would have upset the habitat of bears and other wildlife.
A months-long event, just outside the park, was intended to keep the animals from spreading a disease to livestock. But its scope and other removal measures affecting hundreds more have generated opposition.
The U.N.’s cultural agency warns that ice sheets on Kilimanjaro, in the Dolomites and in Yosemite and Yellowstone may disappear by 2050, highlighting travel’s impact on climate change.