If we want to move towards a low-polluting, sustainable society, we need to get consumers to think about their purchases.

It's not unexpected that shooting massive amounts of water, sand, and chemicals at high pressure into the earth to shatter shale and release natural gas might shake things up. But earthquakes aren't the worst problem with fracking.

Water is our most precious resource, but we waste it, just as we waste other resources, including oil and gas.

I can't imagine anything more important than air, water, soil, energy and biodiversity. These are the things that keep us alive.

Pearl Harbor was the defining event in my life. It shaped who I am, and all of my hang-ups and my drives, I think, stem from that.

We must pay greater attention to keeping our bodies and minds healthy and able to heal. Yet we are making it difficult for our defences to work. We allow things to be sold that should not be called food. Many have no nutritive value and lead to obesity, salt imbalance, and allergies.

With an estimated population of nine billion people by 2050, we cannot continue to consume resources at the same rate and maintain our quality of life.