[4][5] In March 2019, after record-high concentrations of PM 2.5 particles were observed, exposing residents to respiratory and cardiovascular illness, the South Korean government passed emergency legislation in an attempt to reduce the ongoing pollution.
[6] Over the centuries, Korea's inhabitants have cut down most of the ancient Korean forests, with the exception of a few remote, mountainous areas.
Because of successful reforestation programs and the declining use of firewood as a source of energy since the 1960s, most of South Korea's hills in the 1980s were amply covered with foliage.
South Korean authorities feared that once completed, a sudden release of the dam's waters into the Han River during north–south hostilities could flood Seoul and paralyze the capital.
South Korea's animal welfare laws are weak by international standards,[7] and ethical vegetarianism and veganism appear to be rare.
[12] Other issues include water pollution from sewer discharge and industrial effluents, acid rain, drift net fishing, and wasteful packaging of consumer goods.
[13] Transboundary pollution concerns spurred the creation of a joint commission among South Korea, Japan, and China to address environmental problems.
[14] South Korea had a 2018 Forest Landscape Integrity Index mean score of 6.02/10, ranking it 87th globally out of 172 countries.