Yellowstone Super-Volcano Could Be an Energy Source. But Should It Be?

The national park could power the entire continental U.S. with clean energy. Here’s why it remains untapped.

Jane Goodall Joins Wyoming Protestors in Buying Up Grizzly Hunt Tickets

As the state prepares for its first legal grizzly hunt in years, animal advocates clash with hunting interests and state wildlife managers.

World’s Most Powerful Geyser Erupts Three Times After Years of Quiet

Discover why the world's tallest active geyser is becoming more active and how it can shoot water up to 300 feet in the air.

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