Global Warming
“Global Warming” means the annual increase in the average temperature of the earth by a small margin. This may apparently seem little, but in reality, it is enough to cause havoc to our planet. This is caused mostly by the increase of green house gases like carbondioxide and methane in the atmosphere.
By accumulating in the atmosphere, these gases prevent hit from being radiated from the earth. This results in an increase in temperature of the earth and melting of the polar ice caps and glaciers of the world.
Scientists thus foresee a rise in the level of water by several meters with would cause many island and costal regions to be erased from the map. Reduction in the emission of harmful green house gases, specially those that harm the ozone layer like carbon monoxide and sulphurd dioxide, is imperative. Plantation of trees on a massive scale all over the world is a necessity as trees absorb carbondioxide from the atmosphere. Only when such steps are taken can human beings survive on earth for a longer period of time.
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