Guernsey:
NA
Guinea:
deforestation; inadequate supplies of potable water;
desertification; soil contamination and erosion; overfishing,
overpopulation in forest region
Guinea-Bissau:
deforestation; soil erosion; overgrazing; overfishing
Guyana:
water pollution from sewage and agricultural and industrial
chemicals; deforestation
Haiti:
extensive deforestation (much of the remaining forested land
is being cleared for agriculture and used as fuel); soil erosion;
inadequate supplies of potable water
Heard Island and McDonald Islands:
NA
Holy See (Vatican City):
NA
Honduras:
urban population expanding; deforestation results from
logging and the clearing of land for agricultural purposes; further
land degradation and soil erosion hastened by uncontrolled
development and improper land use practices such as farming of
marginal lands; mining activities polluting Lago de Yojoa (the
country's largest source of fresh water) as well as several rivers
and streams with heavy metals; severe Hurricane Mitch damage
Hong Kong:
air and water pollution from rapid urbanization
Howland Island:
no natural fresh water resources