Billions of pounds of plastic and other pollutants end up in the ocean every year.
Sharon Chin introduces Shell Cleave, this week's Jefferson Award Winner who founded a nonprofit to help clean it up.
Billions of pounds of plastic and other pollutants end up in the ocean every year.
Sharon Chin introduces Shell Cleave, this week's Jefferson Award Winner who founded a nonprofit to help clean it up.
By Sarah Brown and Kashfi Halford
Just 60 kilometers (37 miles) outside the city of Rio de Janeiro, dozens of Guiana..