One of the joys of being a grandparent is getting to see the world again through the eyes of a child.

All those hours exploring the great outdoors made me more resilient and confident.

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

Less than 10% of the fuel energy burned in automobiles is translated into forward motion of the vehicle and even then most of this energy is needed to move the vehicle itself, which typically weighs 20 times more than its passengers.

Our choices at all levels-individual, community, corporate and government-affect nature. And they affect us.

Human use of fossil fuels is altering the chemistry of the atmosphere; oceans are polluted and depleted of fish; 80 per cent of Earth's forests are heavily impacted or gone yet their destruction continues. An estimated 50,000 species are driven to extinction each year. We dump millions of tonnes of chemicals, most untested for their biological effects, and many highly toxic, into air, water and soil. We have created an ecological holocaust. Our very health and survival are at stake, yet we act as if we have plenty of time to respond.

How you imagine the world determines how you live in it.