World losing 2,000 hectares of farm soil daily to salt damage
Wednesday, October 29, 2014 - 04:02
in Earth & Climate
Every day for more than 20 years, an average of 2,000 hectares of irrigated land in arid and semi-arid areas across 75 countries have been degraded by salt, according to a study. Today an area the size of France is affected -- about 62 million hectares (20 percent) of the world's irrigated lands, up from 45 million hectares in the early 1990s.