Do not pour cooking oil down the drain

Iceberg, Greenland
Photograph by Philippe Bourseiller

A city of 100,000 people produce over 300,000 liters of wastewater everyday. Before returning to nature, this dirty water must first be cleaned in a treatment plat.

Avoid pouring food oils in the sink: vinaigrette, oil from tuna cans and oil used for frying as they form a film on water that interferes with the functioning of water treatment plants by suffocating the bacteria that remove pollution. It is better to put used cooking fat aside in a closed plastic container that, once full, can be discarded with other non-recyclable waste.

- from the book '365 Ways to Save the Earth' by Philippe Bourseiller