Dog clears rubbish from polluted Brazilian river

A dog in Brazil has been dubbed an eco-warrior after it was filmed it clearing rubbish from a heavily polluted river.

Spotted on Thursday, the dog jumps into Sao Paulo's Tiete River and returns to the shore with a plastic water bottle.

It then jumps back in, swims out and returns with another empty plastic bottle.

The dog was spotted by Brazilian news service Globo.

The Tiete River is one of the world's most polluted waterways.

In 2010, the Sao Paulo stretch of the river was the source of a toxic foam outbreak.

In October 1990, the governor of Sao Paulo pressured government agencies to launch a program to assist in the recuperation of the river.

However, in 25 years, little has actually been done to stem the river’s degradation.