The Arctic 30 are in prison for standing up to oil drilling in the melting Arctic. They have written letters from their cells in Murmansk to families, friends and supporters across the world. Some are shared here, with some lines blurred to protect the privacy of the Arctic 30 and their loved ones. Thanks in particular to the families of the detainees who have agreed to make parts of these letters public.

This is the story of the Arctic 30 in their own words.

Want to write back to them? Upload your message here. Please also sign the global petition for their release