Before and after photos show how California wildfire smoke transformed San Francisco into something out of a post-apocalyptic film

Before and after photos show the Golden Gate Bridge on a clear day on March 21, 2020 (left) and enveloped in wildfire smoke on September 10, 2020 (right).Stephen Lam/Reuters

• San Francisco's sky turned an ominious orange color earlier week when wildfire smoke blocked the sun.
• California is currently battling its most destructive wildfire season on record.
• On September 10, Reuters photographer Stephen Lam set out to photograph five San Francisco destinations that he previously photographed under clear conditions in March.
• His before and after photos show how the wildfire smoke transformed the city into something out of a post-apocalyptc film.