For the first time since life appeared on earth, one species- us- is single-handedly altering the physical, chemical and biological nature of earth. We have become a force of nature

I've always been more interested in organisms that can move on their own than in stationary plants. But when I canoe or hike along the edge of lakes or oceans and see trees that seem to be growing out of rock faces, I am blown away. How do they do it?

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

If we want to address global warming, along with the other environmental problems associated with our continued rush to burn our precious fossil fuels as quickly as possible, we must learn to use our resources more wisely, kick our addiction, and quickly start turning to sources of energy that have fewer negative impacts.

Although they [light and medium trucks] have only 5% of the transportation market..., they account for fully 35% of greenhouse gas emissions from freight transportation.

I can't imagine anything more important than air, water, soil, energy and biodiversity. These are the things that keep us alive.

Faced with the evidence, many deniers have started to admit that global warming is real, but argue that humans have little or nothing to do with it.