We don't have to sacrifice a strong economy for a healthy environment.

Not all is doom and gloom. We are beginning to understand the natural world and are gaining a reverence for life - all life.

Our world faces a true planetary emergency. I know the phrase sounds shrill, and I know it's a challenge to the moral imagination.

We won't have a society if we destroy the environment.

We won't have a society if we destroy the environment.

The only way forward, if we are going to improve the quality of the environment, is to get everybody involved.

People blame their environment. There is only one person to blame - and only one - themselves.

When we try to pick out anything by itself, we find it hitched to everything else in the universe.

Unless we keep this planet healthy, everything else is for naught.

I think the cost of energy will come down when we make this transition to renewable energy.