Argentina, Santa Cruz, Punta Dungeness, Dead penguins cover in oil pollution.

Wales, Pembrokeshire, Tenby, Scooter Duck covered in oil after Sea Empress spill, being cleaned.

Wales, Pembrokeshire, Tenby, Oiled Sccoter Duck in emulsified oil after Sea Empress Spill.

Wales, Pembrokeshire, Tenby, Workers clearing oil in Tenby Harbour from the Sea Empress spill.

Ukraine, Kiev, Pripyat, evacuated city and contaminated are after the Chernobyl nuclear disaster.

Women filtering water to prevent guinea worm a parasitic disease contracted when contaminated water is consumed and which can infect stagnant water.West Africa

Women filtering water to prevent guinea worm a parasitic disease contracted when contaminated water is consumed and which can infect stagnant water.West Africa

Wani. Housing next to street with river running through it contaminated with rubbish. Near Palu

A woman collecting water from a lake source. Contaminated water sources are the leading cause of stomach illness in Africa.

A woman collecting water from a lake source. Contaminated water sources are the leading cause of stomach illness in Africa.