We have altered the physical, chemical and biological properties of the planet on a geological scale. We have left no part of the globe untouched.

If we continue to set human borders and the economy as our highest priorities, we will never come to grips with the destructiveness of our activities and institutions.

Our personal consumer choices have ecological, social, and spiritual consequences. It is time to re-examine some of our deeply held notions that underlie our lifestyles.

Rapid population growth and technological innovation, combined with our lack of understanding about how the natural systems of which we are a part work, have created a mess.

Over and over, we hear politicians say they can't spend our tax dollars on environmental protection when the economy is so fragile.

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

The increasing frequency of extreme weather events, droughts and floods is in line with what climate scientists have been predicting for decades - and evidence is mounting that what's happening is more severe than predicted, and will get far worse still if we fail to act.