Tracking the latest: Questions remain as kids head back to school. CBS News medical contributor Dr. David Agus looks at the classroom, vaccines and more.
Since the 1950s, humans have produced about 8.3 billion metric tons of plastic. Every year, 8 million metric tons end up in the ocean. Globally, only 9% of plastics are recycled. Plastics are useful. They’re used to help make lifesaving medical supplies, lightweight, fuel-efficient car parts, and insulation for our […]