In recent years, there have been many alarming reports to the effect that the world's climate is undergoing a momentous change. All these reports provide is strong evidence that the world temperature is increasing day by day. This is called global warming.
Global warmingAn increase in global warming is caused by the increasing amount of carbon dioxide around the earth. Most climatologists believe that the greenhouse effect is the likely cause of that global warming. Climatologists predict that midway through this country, the temperature may have risen by as much as 4 degrees celsius. This cloud catastrophically reduces mankind's ability to grow food, destroy or severely damage world life and wild and wilderness, raise sea levels and thereby flood coastal areas and farmland. That is the reason why it is a threat to mankind. The alarming news about Bangladesh is that, as the result of the rise of a sea-level, the southern part of the country's main one day goes underwater. The destruction of forests and other habitats is causing the extinction of various plants and animals every day. As a result weather patterns will change and the world will become very warm. We can prevent it by planting trees in large numbers as well as by preserving those that were planed before.