Is it possible to quantify the impact that human beings are having on the Earth? It is easy to use words like “huge” or “irreversible” or “catastrophic” but it is actually possible to put a number on it? We can … Continued

First, some philosophy. Then, some extreme practicality. I hope you enjoy both! Philosophy Friday…. Recently I was on a plane and noticed a couple of lovebirds staring deep into each other’s eyes. There is a certain kind of look that … Continued

I have been invited to give my first commencement speech. I was delighted to be invited to speak to the graduating class at the University of Tulsa, Oklahoma, at the start of May. We don’t have commencement speeches in England. … Continued