John Kerry remarked on the U.S. rejoining the Paris Climate Agreement and says the country rejoins with “humility and ambition.” » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC…
“Please make no mistake,†the veteran broadcaster told the U.N. Security Council, “climate change is the biggest threat to security that modern humans have ever faced.†» Subscribe to NBC…
There are growing concerns about the health impacts of wildfire smoke as California faces larger and more devastating blazes. NBC News’ Steve Patterson goes inside Stanford’s Allergy & Asthma Lab,…