Bill Nye describes extreme heat impacting millions of Americans CNN 0 47 06.19 09:34 https://www.youtube.com/watch?v=c2WrZqv1aao + 4 https://www.youtube.com/feeds/videos.xml?channel_id=UCupvZG-5ko_eiXAup… + 7 Bill Nye describes extreme heat impacting millions of Americans