China:
air pollution (greenhouse gases, sulfur dioxide particulates)
from reliance on coal, produces acid rain; water shortages,
particularly in the north; water pollution from untreated wastes;
deforestation; estimated loss of one-fifth of agricultural land
since 1949 to soil erosion and economic development;
desertification; trade in endangered species
Christmas Island:
NA
Clipperton Island:
NA
Cocos (Keeling) Islands:
fresh water resources are limited to
rainwater accumulations in natural underground reservoirs
Colombia:
deforestation; soil damage from overuse of pesticides; air
pollution, especially in Bogota, from vehicle emissions
Comoros:
soil degradation and erosion results from crop cultivation
on slopes without proper terracing; deforestation
Congo, Democratic Republic of the: poaching threatens wildlife populations; water pollution; deforestation; refugees who arrived in mid-1994 were responsible for significant deforestation, soil erosion, and wildlife poaching in the eastern part of the country (most of those refugees were repatriated in November and December 1996)
Congo, Republic of the: air pollution from vehicle emissions; water pollution from the dumping of raw sewage; tap water is not potable; deforestation
Cook Islands:
NA
Coral Sea Islands:
no permanent fresh water resources