Although Chernobyl was the most serious accident of its kind so far, it has not been the only one. A serious meltdown of a nuclear plant in Three Mile Island in 1978 nearly resulted in the contamination of cities and towns in Pennsylvania, US, but was contained in time. These are the chemicals which scientists think contribute most to global warming and which are chiefly produced by cars, aeroplanes, factories and other industrial processes. People who live on small islands are some of the most likely to suffer from global warming. As the sea warms the water level rises.
Violent storms increase.
Many small islands themselves do not rise more than a few metres above sea level. Some of them will be reduced in size. Some of them will disappear under the water. Apart from this, it is predicted that fish populations will be affected, land near the coast could be contaminated and fresh water supplies affected. Earth Day is celebrated on April 22 nd and its purpose is to spread awareness about the environment through educational materials, events and campaigns.