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.
Education And Research Bring Rio’s Dolphins Back From Brink Of Extinction – Analysis
By Sarah Brown and Kashfi Halford
Just 60 kilometers (37 miles) outside the city of Rio de Janeiro, dozens of Guiana..
Eurasia Review