The Eruption of Mount St. Helens Turned this Lake “Grey” | What On Earth?

Images taken over Washington State reveal a strange anomaly: a lake with a giant, morphing grey blob floating on it. Investigators believe it could be a bizarre legacy of one of the most destructive events in recorded history. Stream Full Episodes of What on Earth?: https://www.sciencechannel.com/tv-shows/what-on-earth/ Subscribe to Science Channel: http://bit.ly/SubscribeScience Like us on Facebook: https://www.facebook.com/ScienceChannel Follow us on Twitter: https://twitter.com/ScienceChannel Follow us on Instagram: https://www.instagram.com/ScienceChannel/