Canada's tree whispererTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoSian Griffiths03/20/2014March 20, 2014Diana Beresford-Kroeger is a Canadian scientist who has cultivated a rare forest with species from around the world. This self-proclaimed 'scientific tree hugger' says we've barely begun to tap the potential of the world's forests.https://p.dw.com/p/1BTC5Advertisement