Global Warming

Global warming is the observed and projected increase in the average temperature of the earth's atmosphere and oceans. During the past century, the atmospheric temperature has risen by 1.1°F (0.6°C) and the sea level has risen several inches.

Cause of Global Warming

  • Global warming is due to an increase in greenhouse gas concentrations, like water vapor, carbon dioxide, methane and ozone in the atmosphere.
  • Burning of coal and petroleum products (sources of carbon dioxide, methane, nitrous oxide, ozone);
  • Deforestation increases the amount of carbon dioxide in the atmosphere
  • Methane gas released in animal waste;
  • Increased cattle production, contributes to deforestation, methane production and the use of fossil fuels.
  • The atmospheric concentrations of carbon dioxide and methane (CH) have increased by 41 % and 160% respectively above pre-industrial levels since 1750.

Main Effects of Global Warming

  • Ice is melting worldwide, especially at the earth's poles. It has led to a steep rise in sea level and coastal flooding.
  • Hurricanes and other tropical storms are likely to become stronger.
  • Increased incidence of tropical diseases, like malaria, cholera, dengue, chikungunya, etc.

There are thousands of species (like polar bears) in danger of becoming extinct forever.