We begin our second series by celebrating the benefits and beauty of urban trees with journalist and presenter Adrian Chiles. In a West London park, he describes how green city spaces and the countryside give him relief from the overstimulation of the capital. We chat too about Adrian's career, and reminisce a little about our good times working together at the BBC in the nineties. At times both funny and frank, he also touches on his experiences of depression and anxiety, as well as attempting to master tree ID and finally conquering the lofty chestnut tree he feared climbing as a child.