San Francisco chokes on toxic air as wildfires rage

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San Francisco chokes on toxic air as wildfires rageSchools and tourist attractions across the San Francisco Bay Area were shut Friday and residents were urged to remain indoors as smoke from California's deadliest ever wildfire -- a three-hour drive away -- produced air quality levels worse than in polluted megacities in South Asia. The closures came as the number of people missing from the giant Camp Fire, which has devoured an area roughly the size of Chicago since it broke out last week, soared to more than 600, with 63 confirmed dead. President Donald Trump is set to visit the tinder-dry state on Saturday to meet victims of the inferno, which has laid waste to the town of Paradise at the northern foothills of the Sierra Nevada mountains, destroying around 10,000 homes.


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