Newsom details 'climate emergency' as fires rage

"If you do not believe in science, I hope you believe in observed evidence," Newsom said as he stood amid a charred landscape in Butte County on Friday.

Over 68,000 people were under evacuation orders in California where the largest fire in state history has burned over 740,000 acres (299,470 hectares) in the Mendocino National Forest around 120 miles (190 km) northwest of Sacramento.