Love is the force that makes us fully human.

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.

Just as human activity is upsetting Earth's carbon cycle, our actions are altering the water cycle.

In nature there is no such thing as waste. In nature nothing is wasted; everything is recycled.

The voluntary approach to corporate social responsibility has failed in many cases.

You would have thought that our first priority would be to ask what the ecologists are finding out, because we have to live within the conditions and principles they define. Instead, we've elevated the economy above ecology.

Just as fossil fuels from conventional sources are finite and are becoming depleted, those from difficult sources will also run out. If we put all our energy and resources into continued fossil fuel extraction, we will have lost an opportunity to have invested in renewable energy.