Robert Irwin shares his hope for our planet's future with dukeandduchessofcambridge. 🌎 💙 robertirwinphotography is not only an earthshotprize advocate, but an advocate for all wildlife conservation as well. Watch The #EarthshotPrize: Repairing Our Planet on discovery today at 4p, and livestream the awards on Discovery’s Facebook page tomorrow at 3p ET.