Related topics: health

Four most polluted national park sites are in California

A couple years ago, as part of the Sierra Club's Outdoors for All campaign, Roberto Morales took a group of low-income Los Angeles area residents north to Sequoia National Park to help with a forest restoration project.

Exxon Valdez oil spill, 25 years later

In the early morning hours of March 24, 1989, the Exxon Valdez oil tanker sliced into Prince William Sound's Bligh Reef, spilling hundreds of thousands of barrels of crude oil into pristine Alaskan waters. It is considered ...

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