The environmental crisis is the canary in the mineshaft of modern society. Miners, in previous generations, checked the quality of air in a mine by lowering a canary in a cage into a mineshaft. If the canary came back up alive the miners would go into the mine; if the canary came back dead the miners would not proceed as the mine was dangerous and unsafe. The environmental crisis is playing a similar role for people in modern society. For example, plants and animals are becoming extinct in unprecedented numbers, the oceans’ fisheries are in decline, water is increasingly polluted, and even the air we breathe - so called ‘fresh air’ - is frequently smog (air contaminated by industrial and agricultural pollutants). Further, industrial process...