 has sped up in the last 10 years. Melting ice produces an average of 50,000 gallons of water every second. The scientists blame climate change. 64 glaciers have disappeared from the ice field between 2005 and 2019. Well, there's new hope today for those who have lost a limb. Scientists say they're making new strides in prosthetic limbs and how they actually interact with the brain.