Sir John Beddington, Senior Adviser at the Oxford Martin School, gives a talk on climate change Some five years ago Sir John Beddington, Senior Adviser at the Oxford Martin School, raised the concept of 'The Perfect Storm' in which the issues of food, water and energy security needed to be addressed at the same time as mitigating and adapting to climate change. In this seminar he highlights changes that have occurred since then and the progress made and challenges that are currently faced.