Earth is headed for a sixth extinction, warned biologist Paul Ehrlich on “60 Minutes” this Sunday. And since Ehrlich has predicted about 20 extinctions over the past 60 years, he’s a leading expert on the issue.
Earth is headed for a sixth extinction, warned biologist Paul Ehrlich on “60 Minutes” this Sunday. And since Ehrlich has predicted about 20 extinctions over the past 60 years, he’s a leading expert on the issue.
