Video blocked Heat wave endangers millions across U.S., closing schools and prompting energy concerns Similar videos 06:02 Heat wave, historic flooding impact millions across US 01:31 Officials: California could experience an emergemcy crisis soon because of heat waves 03:15 US heat waves, drought impacted by climate change 00:31 Doctors warn of burns from asphalt as heat wave hits US West 06:39 Why extreme heat is more dangerous than many realize 06:29 Destructive storms, extreme heat batter East Coast communities 45:33 CBC News: The National | Trump on Jan. 6, $10/day child care, Monarch butterflies 45:26 CBC News: The National | Europe extreme heat, Artificial heart transplant, Russia sanctions 49:55 Top Story with Tom Llamas - June 13 | NBC News NOW 03:44 Gov. Newsom Addresses Prolonged Heatwave And Power Shortages 03:30 California forest closed as wildfires burn, heat returns 53:52 Heat Beneath Our Feet: Forging a Path Forward with Enhanced Geothermal Systems 11:55:02 Watch NBC News NOW Live - July 14 03:28 Millions brace for more severe weather after catastrophic flooding 03:24 WION Climate Tracker: Japan sees record temperatures, heat stroke puts hundreds in hospital 03:56 Millions At Risk As Severe Weather Sweeps Across The South 11:55:01 Watch NBC News NOW Live - September 4 11:55:01 Watch NBC News NOW Live - July 21 11:55:01 Watch NBC News NOW Live - September 17 11:55:01 Watch NBC News NOW Live - September 3 More results