A picture shows a field where no-till farming is used in Piace, northwestern France, on November 30, 2015. French farmer Nicolas Denieul plants his spade in the ground and turns over a clod of soil to reveal a mass of earthworms seething around plant roots -- fat ones and thin ones, delicate translucent violet and dark brown. / AFP / JEAN-FRANCOIS MONIER (Photo credit should read JEAN-FRANCOIS MONIER/AFP via Getty Images)
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AFP JEAN-FRANCOIS MONIER