“Most people think about, at most, an election cycle,” he says. That can lead to shortsightedness on issues such as climate change: “How do we, as humans with our rapidly growing populations, not destroy all the natural ecosystems?” he wonders.

I am stubbornly optimistic and that helps me take on challenges of all sizes. During my life, I have witnessed breathtaking scientific discoveries and situations where single individuals have driven positive change. I am also a big believer in the power of teams and the ability of small groups of committed people to achieve great things.