Scientists are sounding an alarm that we are living in the midst of the sixth mass extinction, they predict we are just 20 years away from life being altered on Earth again. Scott Pelley reports, Sunday.

"60 Minutes" is the most successful television broadcast in history. Offering hard-hitting investigative reports, interviews, feature segments and profiles of people in the news, the broadcast began in 1968 and is still a hit, over 50 seasons later, regularly making Nielsen's Top 10.

Subscribe to the “60 Minutes” YouTube channel: http://bit.ly/1S7CLRu
Watch full episodes: http://cbsn.ws/1Qkjo1F
Get more “60 Minutes” from “60 Minutes: Overtime”: http://cbsn.ws/1KG3sdr
Follow “60 Minutes” on Instagram: http://bit.ly/23Xv8Ry
Like “60 Minutes” on Facebook: http://on.fb.me/1Xb1Dao
Follow “60 Minutes” on Twitter: http://bit.ly/1KxUsqX
Subscribe to our newsletter: http://cbsn.ws/1RqHw7T
Download the CBS News app: http://cbsn.ws/1Xb1WC8
Try Paramount+ free: https://bit.ly/2OiW1kZ

For video licensing inquiries, contact: licensing@veritone.com