¥Once
almost treeless, South Korea has reforested 65% of its land
¥If
every country recycled paper at the South Korean rate (91%), the amount of wood
pulp used for paper production would drop by over one third
worldwide
¥Over
the last quarter-century the United States reduced soil erosion 40% by retiring
cropland and practicing conservation tillage, while
increasing the grain harvest 20%
¥Within
2 years of restricting fishing in 6,600 square miles of marine reserves in the
Gulf of Maine in the North Atlantic, fish population
density rose 91%, average fish size went up 31%, and
species diversity rose 20%