Discuss the causes and effects of global warming. What measures need to be taken to control global warming?

Explanation

Increase in the level of green house gases has led to considerable heating of the "Earth leading to global warming. During the past century, the temperature of the earth has increased by 0.6°C most of it during the last three decades. Scientists believe that this rise in temperature is leading to severe changes in the environment. Global warming is causing climatic changes (e.g. such as El Nino effect) and is also responsible for the melting of polar ice caps and other snow caps of mountains such as the Himalayas. Over many years, this will result in a rise in sea levels, all over the world, that can submerge many coastal areas. The total spectrum of changes that global warming can bring about is subject that is still under active research.
Global warming : Control measures : i) The measures include cutting down use of fossil fuels. 2) Improving efficiency of energy usage. 3) Planting of trees and avoiding deforestation.