Long Drought Affecting California’s Sequoias

California is suffering under a historic four-year drought and scientists say even the state's famed sequoia trees are feeling the pain. The National Park Service has started detailed research to see how it can help the oldest living things on earth survive. Slowly and painstakingly, University of California tree biologist Anthony Ambrose climbs up a giant sequoia in California’s Sierra Nevada mountain range, the only place on earth where these magnificent trees live. “It’s an...

© La Voix de l'Amérique - lundi 28 septembre 2015