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.

Doing all we can to combat climate change comes with numerous benefits, from reducing pollution and associated health care costs to strengthening and diversifying the economy by shifting to renewable energy, among other measures.

You are what you do, not what you say.

Outright bans on plastic bags may not be the best solution, but education and incentives to get people to stop using them are necessary.

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.

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.

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