Soil damage adequately fuelled climate change

Climate change can’t be halted if we carry on degrading the soil. There’s three times more carbon in the soil than in the atmosphere but that carbon’s being released by deforestation and poor farming damage soil.

Soil damage adequately fuelled climate changeThis is fuelling climate change and compromising our attempts to feed a growing world population. Problems include soils being eroded, compacted by machinery, built over, or harmed by over-watering.

Hurting the soil affects the climate in two ways: it compromises the growth of plants taking in carbon from the atmosphere, and it releases soil carbon previously stored by worms taking leaf matter underground.

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The warning will come from the awkwardly-named IPBES – the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services – a panel studying the benefits of nature to humans.

The body aims to get all the world’s governments singing from the same sheet about the need to protect natural systems. About 3.2 billion people worldwide are suffering from degraded soils, said IPBES chairman Prof Sir Bob Watson.

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“That’s almost half of the world population. There’s no question we are degrading soils all over the world. We are losing from the soil the organic carbon and this undermines agricultural productivity and contributes to climate change. We absolutely have to restore the degraded soil we’ve got.”

Soil expert Prof Jane Rickson from Cranfield University, UK, added: “The thin layer of soil covering the Earth’s surface represents the difference between survival and extinction for most terrestrial life.

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“Only 3% of the planet’s surface is suitable for arable production and 75 billion tonnes of fertile soil is lost to land degradation every year.” She said soils form at a rate of 1cm in 300 years.

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Hasan Akhter
Author: Hasan Akhter

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