When we think of wars in our times, our minds turn to Iraq and Afghanistan. But the bigger war is the war against the planet. This war has its roots in an economy that fails to respect ecological and ethical limits - limits to inequality, limits to injustice, limits to greed and economic concentration.

A handful of corporations and of powerful countries seeks to control the earth's resources and transform the planet into a supermarket in which everything is for sale. They want to sell our water, genes, cells, organs, knowledge, cultures and future.

The continuing wars in Afghanistan, Iraq and onwards are not only about "blood for oil". As they unfold, we will see that they are about blood for food, blood for genes and biodiversity and blood for water.

The war mentality underlying military-industrial agriculture is evident from the names of Monsanto's herbicides - ''Round-Up'', ''Machete'', ''Lasso''. American Home Products, which has merged with Monsanto, gives its herbicides similarly aggressive names, including ''Pentagon'' and ''Squadron''.This is the language of war. Sustainability is based on peace with the earth.

The war against the earth begins in the mind. Violent thoughts shape violent actions. Violent categories construct violent tools. And nowhere is this more vivid than in the metaphors and methods on which industrial, agricultural and food production is based. Factories that produced poisons and explosives to kill people during wars were transformed into factories producing agri-chemicals after the wars.