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Saturday, February 11, 2017

3 circular principles for healthy agriculture.

3 circular principles for healthy agriculture.Proponents of the regenerative economy are realizing that it is dependent on the circular economy of soil. The soil is one of the key natural capitals on which we all depend. Its loss is our demise. Three ways to move towards regenerative agriculture: 1) return farming systems to harmony with nature’s cycles. 2) make and use biochar. 3)implement holistic management across the world’s grasslands. Most of the climate crisis results from burning fossil fuels, but almost a quarter of the problem derives from agriculture. After 150 years of unsustainable practices, the earth’s soil has been depleted. Modern agriculture worsens climate change. Unchecked, climate change will destroy our tenuous ability to feed ourselves. For every 1 degree Celsius rise in temperature above the norm, yields of wheat, rice and corn drop 10 percent. Given that more than a billion people in the world already suffer from malnutrition. Soil that has been de-carbonized (lost its organic matter) requires large amounts of fossil fuel-based fertilizer if it is to grow crops at industrial scale. Petrochemical use in fertilizer releases greenhouse gasses (GHGs), especially nitrous oxide, a gas 300 times more potent per ton in causing global warming than CO2. Plowing and poor nutrient management release the nitrogen from soils in quantities. When out of place, both carbon and nitrogen, key building blocks of life in nature, are serious threats to the stability of the climate. continue