Michel Masson is 58 years old. He is a farmer. He kept a tree - just one, a walnut tree - in his rapeseed field the size of seven football pitches. Like him, it is one of the last of a dying breed.

Sign up to our free newsletters

Get the best updates straight to your inbox:
Please select at least one mailing list.

You can unsubscribe at any time by clicking the link in the footer of our emails. We use Mailchimp as our marketing platform. By subscribing, you acknowledge that your information will be transferred to Mailchimp for processing.