The stomach contents of a Minke whale washed up on the sandy Normandy coast in 2002.

Cause of death? Starvation, from ingesting plastic bags, blocking the digestive tract and leading to a slow and painful death.

We were so horrified at what we're doing by using so many plastic bags, that we wanted as many people as possible to see it.

We'd like to see fewer whales, dolphins, seabirds, turtles and seals killed by plastic bags. So we're trying to stop giving out plastic bags in Newington Green, North London.