After a lot of discussion, I am pleased to announce the creation of the James Martin Institute's Policy Foresight Programme.  Working with the Programme's Director, Sir Crispin Tickell, I will organise up to six 1-day seminars a year on issues of 'science, technology, and the environment in order to identify leverage points in current policy that could have significant long-term benefits for civilization.'  The first one will be on the future of agriculture and the food supply chain.  I'll post the draft overview in the next few days, but for now, what do you see as the most significant problem facing agriculture and the food supply chain today - one that could possible jeopardise the whole system if not addressed in the next few years?