California’s giant sequoias are pillars of living history. Climate change may kill them

California’s famous giant sequoias can live for thousands of years. But the KNP Complex Fire is just 11 percent contained, and is burning across nearly 50,000 acres, including treasured groves in Sequoia and Kings Canyon National Parks. Another fire is also blazing in Sequoia National Forest to the south. Special correspondent Cat Wise got a first-hand look on a recent media tour with officials.

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