The ‘Unfolding Global Disaster’ Happening Right Under Our Feet

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The full article by Natasha Geiling was originally written for Think Progress

With all that’s going on in the world — from record-breaking warm spells to rapidly melting ice sheets — it’s easy to ignore something so seemingly mundane as dirt. But scientists at the University of Sheffield’s Grantham Center for Sustainable Futures suggest that we ignore dirt at our own peril.

Nearly a third of the world’s arable land has been lost over the past four decades, according to a new report, released to coincide with the Paris climate talks earlier this month. Experts at the the University of Sheffield called this soil loss “an unfolding global disaster” that directly threatens the agricultural productivity of the planet.

But soil erosion isn’t just a problem for food security — which is expected to become even more pressing as the world’s population booms and land available for food production wanes. Soil erosion is also tied to the climate, as the world’s soils represent a massive carbon storage system, containing three times the amount of carbon that is currently in the atmosphere.

“If the soil carbon reserve is not managed properly, it can easily overwhelm the atmosphere,” Rattan Lal, director of the Carbon Management and Sequestration Center at Ohio State University, told ThinkProgress in April.

The University of Sheffield report places most of the blame for soil erosion on what it calls unsustainable farming practices, which require large amounts of fertilizers and tilling to boost crop yields. Switching to a more sustainable model of intensive agriculture, the report urges, can help offset soil loss.

Read more via Think Progress
The ‘Unfolding Global Disaster’ Happening Right Under Our Feet