Last year, 60 Minutes reported that scientists were sounding an alarm that we were living in the midst of the sixth mass extinction. Biologist Paul Ehrlich told Scott Pelley that humans would need "five more Earths" to maintain our current way of life.

"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.

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