Cambodia:
monsoonal rains (June to November); flooding; occasional
droughts
Cameroon:
recent volcanic activity with release of poisonous gases
Canada:
continuous permafrost in north is a serious obstacle to
development; cyclonic storms form east of the Rocky Mountains, a
result of the mixing of air masses from the Arctic, Pacific, and
North American interior, and produce most of the country's rain and
snow
Cape Verde:
prolonged droughts; harmattan wind can obscure
visibility; volcanically and seismically active
Cayman Islands:
hurricanes (July to November)
Central African Republic:
hot, dry, dusty harmattan winds affect
northern areas; floods are common
Chad:
hot, dry, dusty harmattan winds occur in north; periodic
droughts; locust plagues
Chile:
severe earthquakes; active volcanism; tsunamis
China:
frequent typhoons (about five per year along southern and
eastern coasts); damaging floods; tsunamis; earthquakes; droughts
Christmas Island:
the narrow fringing reef surrounding the island
can be a maritime hazard