“The essential fact which emerges ... is that the three smallest and most active reservoirs ( of carbon in the global carbon cycle), the atmosphere, the plants and the soil, are all of roughly the same size. This means that large human disturbance of any one of these reservoirs will have large effects on all three. We cannot hope either to understand or to manage the carbon in the atmosphere unless we understand and manage the trees and the soil too.”

“In the Gaia theory air, water, and soil are major components of one central organism, planet Earth. What we typically think of as life - the plants and animals that inhabit the earth - has evolved merely to regulate the chemistry of the biosphere. Humans are insignificant participants, far less important to the life cycle than termites. Even the imbalance that we have created by adding massive quantities of carbon dioxide to the atmosphere may be brought back to acceptable levels by other organisms functioning in their capacity to correct excesses.”

“Human beings, like plants, grow in the soil of acceptance, not in the atmosphere of rejection”

“When Al Gore urges the citizenry to sacrifice their plastic shopping bags, their air-conditioning, their extraneous travel, the agnostics grumble that human activity accounts for just 2 percent of global carbon-dioxide emissions, with the remainder generated by natural processes like plant decay.”

“By planting rye I am creating carbon sinks in my backyard, expanding my role in the carbon cycle, launching my own backyard campaign to offset global warming. My emissions, after all, reflect a rural but very comfortable life in which I enjoy goods that travel great distances - clementines from Spain, wine from California - and on the occasional holiday I fly south, seeking warmer places. Will planting rye in the shoulder seasons be enough to make a difference? Certainly not, but it is a gesture, a way to frame the question and provide a benchmark to judge the extent of my complicity.”

“Whether people are fully conscious of this or not, they actually derive countenance and sustenance from the 'atmosphere' of the things they live in or with. They are rooted in them just as a plant is in the soil in which it is planted. ”