Photo taken near Half Moon Bay south of San Francisco, California, the United States, shows the sky illuminated by the blaze of wildfires in California, on Aug. 17, 2020. Fueled by record heat waves, wildfires raging in California, Oregon and Colorado have scorched 100,000 acres (404.7 square kilometers) recently. (Photo by Dong Xudong/Xinhua)

Photo taken near Half Moon Bay south of San Francisco, California, the United States, shows the sky illuminated by the blaze of wildfires in California, on Aug. 17, 2020. Fueled by record heat waves, wildfires raging in California, Oregon and Colorado have scorched 100,000 acres (404.7 square kilometers) recently. (Photo by Dong Xudong/Xinhua)

Photo taken near Half Moon Bay south of San Francisco, California, the United States, shows the sky illuminated by the blaze of wildfires in California, on Aug. 17, 2020. Fueled by record heat waves, wildfires raging in California, Oregon and Colorado have scorched 100,000 acres (404.7 square kilometers) recently. (Photo by Dong Xudong/Xinhua)

Photo taken near Half Moon Bay south of San Francisco, California, the United States, shows the sky illuminated by the blaze of wildfires in California, on Aug. 17, 2020. Fueled by record heat waves, wildfires raging in California, Oregon and Colorado have scorched 100,000 acres (404.7 square kilometers) recently. (Photo by Dong Xudong/Xinhua)

Photo taken near Half Moon Bay south of San Francisco, California, the United States, shows the sky illuminated by the blaze of wildfires in California, on Aug. 17, 2020. Fueled by record heat waves, wildfires raging in California, Oregon and Colorado have scorched 100,000 acres (404.7 square kilometers) recently. (Photo by Dong Xudong/Xinhua)