There is a gyre of discarded floating plastic the size of the continental USA in the ocean. In it, plastic trash outweighs plankton 40 to 1.

Think about a seed. Once it lands, it's stuck. It can't move to find better soil, moisture or sunlight. It's able to create every part of itself to grow and reproduce with the help of air, water and sun.

Aboriginal people are key because they have a different sense of where we belong and how we interact with nature.

What permaculturists are doing is the most important activity that any group is doing on the planet.

Perhaps the whole world is actually a banquet, to which every living thing is invited. First you come as guests: then eventually you're on the menu.

The human brain now holds the key to our future. We have to recall the image of the planet from outer space: a single entity in which air, water, and continents are interconnected. That is our home.

Global trade has advantages. For starters, it allows those of us who live through winter to eat fresh produce year-round. And it provides economic benefits to farmers who grow that food.