El Niño 101 | National Geographic

El Niño is a series of complex weather patterns that occurs every two to seven years. It causes drastic changes in weather that can lead to billions of dollars in damages, high death tolls, and disease. Find out what causes El Niño, how it can affect you, and why it is so hard to predict it. ➡ Subscribe: ➡ Get More 101 Videos: About National Geographic’s 101 Series: Explore and experience the forces that shape the world around us. Get More National Geographic: Official Site: Facebook: Twitter: Instagram: About National Geographic: National Geographic is the world’s premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what’s possible. El Niño 101 | National Geographic