| Country | Environment - current issues |
| Kuwait | limited natural freshwater resources; some of world's largest and most sophisticated desalination facilities provide much of the water; air and water pollution; desertification |
| Kyrgyzstan | water pollution; many people get their water directly from contaminated streams and wells; as a result, water-borne diseases are prevalent; increasing soil salinity from faulty irrigation practices |
| Laos | unexploded ordnance; deforestation; soil erosion; most of the population does not have access to potable water |
| Latvia | Latvia's environment has benefited from a shift to service industries after the country regained independence; the main environmental priorities are improvement of drinking water quality and sewage system, household, and hazardous waste management, as well as reduction of air pollution; in 2001, Latvia closed the EU accession negotiation chapter on environment committing to full enforcement of EU environmental directives by 2010 |
| Lebanon | deforestation; soil erosion; desertification; air pollution in Beirut from vehicular traffic and the burning of industrial wastes; pollution of coastal waters from raw sewage and oil spills |
| Lesotho | population pressure forcing settlement in marginal areas results in overgrazing, severe soil erosion, and soil exhaustion; desertification; Highlands Water Project controls, stores, and redirects water to South Africa |
| Liberia | tropical rain forest deforestation; soil erosion; loss of biodiversity; pollution of coastal waters from oil residue and raw sewage |
| Libya | desertification; limited natural freshwater resources; the Great Manmade River Project, the largest water development scheme in the world, brings water from large aquifers under the Sahara to coastal cities |
| Liechtenstein | NA |
| Lithuania | contamination of soil and groundwater with petroleum products and chemicals at military bases |
| Luxembourg | air and water pollution in urban areas, soil pollution of farmland |
| Macau | NA |
| Macedonia | air pollution from metallurgical plants |
| Madagascar | soil erosion results from deforestation and overgrazing; desertification; surface water contaminated with raw sewage and other organic wastes; several endangered species of flora and fauna unique to the island |