Combination of successful reforestation programs starting in the 1950s and the declining use of firewood as a source of energy led to improvements, and most of South Korea's hills by the 1980s were amply covered with foliage.
Combination of successful reforestation programs starting in the 1950s and the declining use of firewood as a source of energy led to reversal of deforestation. Comprehensive reforestation efforts in the 1970s led to dramatic increase in forest cover, and most of South Korea's hills by the 1980s were amply covered with foliage.