Conserving energy and thus saving money, reducing consumption of unnecessary products and packaging and shifting to a clean-energy economy would likely hurt the bottom line of polluting industries, but would undoubtedly have positive effects for most of us.

Unless we are willing to encourage our children to reconnect with and appreciate the natural world, we can't expect them to help protect and care for it.

Love is the force that makes us fully human.

You are what you do, not what you say.

With the world's human population now at seven billion and growing, and the demand for technology and modern conveniences increasing, we can't control all our negative impacts. But we have to find better ways to live within the limits nature and its cycles impose.

We can't blame children for occupying themselves with Facebook rather than playing in the mud. Our society doesn't put a priority on connecting with nature. In fact, too often we tell them it's dirty and dangerous.

Humanity is facing a challenge unlike any we've ever had to confront. We are in an unprecedented period of change.