Sea otter at rehabilitation centre in Valdez after Exxon Valdez oil spill.

Dr. Rick Steiner, Marine Biologist, University of Alaska, examines oil left from the Exxon Valdez oil spill 15 years later, at Rua Cove.

Flames consume huge areas of forest in Vale Alto, Portugal. Portugal has declared a national disaster after the worst forest fires in more than two decades killed nine people, torched thousands of hectares of forest and destroyed homes.

Flames consume huge areas of forest in Vale Alto, Portugal. Portugal has declared a national disaster after the worst forest fires in more than two decades killed nine people, torched thousands of hectares of forest and destroyed homes.

The sun sets early in to the smoke haze above a scorched forest. Portugal has declared a national disaster after the worst forest fires in more than two decades killed nine people, torched thousands of hectares of forest and destroyed homes.

Sloth (Bradybus variegates) in forest of Peru.

Part of the Bijagos Archipelago threatened by the plan for a polluting ship breakling yard.