The Science of Sustainability

Tag: Sierra Club

Sierra Club Director: Time to Take Climate Action to the Streets

Sierra Club Director: Time to Take Climate Action to the Streets

For the first time in the Sierra Club's 120-year history, its national head was arrested for an act of civil disobedience. It signals a new, more aggressive stance for the organization spawned by John Muir.

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Century-Old Battle Over Yosemite's 'Second Valley' Heats Up

Century-Old Battle Over Yosemite's 'Second Valley' Heats Up

One of California's oldest environmental battles is on the San Francisco ballot. Hetch Hetchy Valley in Yosemite National Park holds most of San Francisco's water supply. But some environmental groups want to turn back the clock.

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The Turns and Twists of the Devil's Slide Tunnel

The Turns and Twists of the Devil's Slide Tunnel

On October 1st, as news crews filmed the action, Caltrans broke through a retaining wall at the north portal of the Devil’s Slide tunnels on Highway One, opening a new way to link the coastal communities of Pacifica and Montara in San Mateo County.

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The Turns and Twists of the Devil's Slide Tunnel

The Turns and Twists of the Devil's Slide Tunnel

On October 1st, as news crews filmed the action, Caltrans broke through a retaining wall at the north portal of the Devil’s Slide tunnels on Highway One, opening a new way to link the coastal communities of Pacifica and Montara in San Mateo County.

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Reporter's Notes: Environmentalism Today

Reporter's Notes: Environmentalism Today

40 years after the modern environmental movement began, it's a mixed report card with what seems like the toughest test still ahead.

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