Fish on the menu today. Rupert Howes of the Marine Stewardship Council came in to do a lunch-time session with team members from Volans and SustainAbility. MSC have made extraordinary progress in recent years, but the scale of the challenges the world faces is horrendous. Rupert described the collapse of oceanic fisheries as second only to climate change in terms of global importance. Very lively session. Rupert, who I first met when he was at Forum for the Future, is an inspirational leader and speaker — we could have continued for much of the day. Had to apologise early on about my blinking eye: post-op tic rather than my trying to send significant signals.