“My fear is that if we see continued insufficient progress, volatility will rise at a pace and to an extent that we are unable to contain it. Governments can’t manage it and business and society just can’t handle it. Climate volatility, temperature, rain fall, food prices, you name it. So if I’m forced to choose, climate worries me more. Cybersecurity is a very real problem, but has, in my opinion, a fix that isn’t quite so daunting - which is basically, that you have to be prudent about how you approach it, have the right preventive mechanisms, spend money proactively. But none of the fixes that can deter cyber breaches can fix climate change. Climate change isn’t just a threat to national security. I think it’s the single biggest threat to us being able to deliver a better planet to our children and grandchildren. It’s global. That’s what makes it so hard to tackle at a sub-global level."