Listen to Michael talk on BBC Radio 4 about his love of trees, a passion he has had since childhood.

It’s the Year of the Tree on PM, and we’ve been hearing about the relationship between people and the trees they love. Author Michael Morpurgo’s favourite tree is the Chesnut, one of which stands on the Farm For City Children that his wife started in Devon. He explains how they have planted lots of trees on the farm because “we now know that, at great cost to the planet, we’ve been cutting down far too many trees and not replacing them – and how important they are to this fight against global warming”.