Part 82 (1/2)

David Laird and Jeffrey Novak, ”Biochar and Soil Quality,” Encyclopedia of Soil Science, 2nd ed. (New York: Taylor & Francis, 2011), pp. 14.

372 when Victory Gardens were planted during World War II

National WWII Museum, ”Victory Gardens at a Glance,” 2009, /learn/education/for-students/ww2-history/at-a-glance/victory-gardens.html.

373 keep up with the extra food production needed

David Pimentel et al., ”Impact of a Growing Population on Natural Resources: The Challenge for Environmental Management,” Frontiers 3 (1997).

374 (approximately 25 million acres) every year

Lang, ” 'Slow Insidious' Soil Erosion.”

375 mostly in Kazakhstan (1954)-and created their own Dust Bowl

Lester Brown, World on the Edge (New York: Norton, 2011), /books/wote/wotech3.

376 Aral Sea, almost completely disappeared

NASA, ”A Shrinking Sea, Aral Sea,” July 23, 2012,

377 eroded land to gra.s.sland and a nationwide effort to fight soil erosion

Andrew Gla.s.s, ”FDR Signs Soil Conservation Act, April 27, 1935,” Politico, /news/stories/0410/36362.html.

378 ”Drylands are on the front line”

Alister Doyle, ”World Urged to Stop Net Desertification by 2030,” Reuters, June 14, 2011.

379 way of life for an estimated one billion people in 100 countries

Ibid.

380 ”dust storm moved through a large swatch of Arizona”