Because countries often have differing political and economic systems, agreements are needed to protect those invested in trade.

Each of us has the ability to act powerfully for change; together we can restore that ancient and sustaining harmony.

The one thing I feel is very hopeful, however, is the overwhelming participation of women in the movement for change.

Plastic bags are bad and for the most part unnecessary.

We have much to learn by studying nature and taking the time to tease out its secrets.

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.

Humans are an infant species, a mere 150,000 years old. But, armed with a massive brain, we've not only survived, we've used our wits to adapt to and flourish in habitats as varied as deserts, Arctic tundra, tropical rainforests, wetlands and high mountain ranges.