Alex Craven, the forests campaign manager for the Sierra Club conservation group, said there was a "scientific necessity and public expectation” to protect old-growth and mature forests. “Those two ...

On a gentle slope above a trail junction in Sequoia National Park, about 7,000 feet above sea level in the southern Sierra Nevada ... forest ecology—that wood production decreases during the old ...

WASHINGTON— A coalition of environmental groups called on the U.S. Forest ... mature and old-growth trees and forests on federal land. Members of the coalition, including Natural Resources Defense ...

Like its cousins the Mexican and northern spotted owls, the California spotted owl is a bellwether of old-growth forests. This owl's classic four-note call was once commonly heard throughout the big ...

Alex Craven, the forests campaign manager for the Sierra Club conservation group, said there was a “scientific necessity and public expectation” to protect old-growth and mature forests.