How climate change ’exacerbates’ wildfires in the American West

As large parts of California and the Pacific Northwest are beset by wildfires, the issue of climate change has taken on prominence in the national political conversation. Scientists increasingly point to rising temperatures and extreme dryness as exacerbating wildfires, but what other factors are involved? Science correspondent Miles O’Brien joins William Brangham to discuss. Stream your PBS favorites with the PBS app: Find more from PBS NewsHour at Subscribe to our YouTube channel: Follow us: Facebook: Twitter: Instagram: Subscribe: PBS NewsHour podcasts: Newsletters: