Global Warming

Global warming means a gradual increase in the Earth's average lower atmosphere due to emissions and build up of greenhouse gases . Global warming is when the earth heats up and the temperature rises. It happens when greenhouse gases such as carbon dioxide, water vapor, nitrous oxide, and methane trap heat and light from the sun in the earth’s atmosphere, which increases the temperature. Greenhouse gases are released mostly by the burning of fossil fuels for transportation, heating, electrical appliances and manufacturing, but they are also released as a result of the natural decomposition of organic materials, wildfires, deforestation, and land-clearing activities. The diffusion of these gases results in the spread of various epidemics. There are myriad problems that emerge due to global warming. The repercussions of the soaring temperature are serious and irreversible. Global warming can have devastating long term consequences. It disturbs the biodiversity of various species and their genetic makeup. It causes the sea levels to rise everywhere, permanently flooding many low lying parts of the earth. Many geographical areas may experience reduction in crop yield due to drier and hotter condition. In particular, global warming will result in the extinction of many under water species and is a major threat to marine ecosystems. Also, the increase in temperatures results in the melting of glaciers and expansion of ocean water, both of which cause sea level to rise. Higher sea levels increase storm surges and erode beaches. Global warming will cause an increase in extreme weather such as tsunamis and destruction of whole forests due to environmental changes and forest fires. It will also lead to increased human illnesses and deaths. Climate change also is likely to increase the number of species that are listed as threatened or endangered.
There are innumerable causes for global warming. Burning of fossil fuels is the one of the primary causes