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Thursday, May 31, 2018

Global Warming :The biggest threat to our lives

Its very clear  to the scientists and all the researchers all over the world that Global warming is perhaps  the biggest challenge to be faced by all of us in the near future.Global Warming is the biggest setback of Industrial revolution.In the early days of the Industrial Revolution, no one would have thought that their burning of fossil fuels would have an almost immediate effect on the climate.Recent studies prove that global warming set its feet in some regions as early as the 1800s.
                                         

Global warming is the term used to describe a gradual increase in the average temperature of the Earth's atmosphere and its oceans, a change that is believed to be permanently changing the Earth’s climate.
                         
   CAUSES FOR GLOBAL WARMING & CLIMATE CHANGE

 1.Burning of Fossil Fuels:The demand for energy is ever increasing in the modern times.Almost every day there's a new car in the market.With  almost 40,000 new cars being added to the roads each day;so is the demand for more and more fossil fuels.
Over the years various features,designs,technologies  of automobile industry has changed a lot;but still the source of fuel remains the same----the same old petrol & diesel .Even the cars which were used a century ago used the same fuel as we do today. So,with the population growing at an alarming rate,so is the demand for more vehicles & more fossil fuels & all these together pose a even greater threat to our lives. Now is the time to change to a cleaner fuel ; its now or never.


2.Burning Coal for producing electricity:  Of coal’s many environmental impacts, none are as harmful, long term, and irreversible as global warming. Coal has long been used as a sourc
e of energy to produce electricity,run steam engines etc. With the ever increasing number of electronic gadgets in the market today;so is the need for more and more electricity.Every year more than 1.2 billion tons of coal are burnt to fulfill our daily needs.More than 70 percent of the electricity generated all over the world comes from coal.When coal is burned it releases a number of airborne toxins and pollutants. They include mercury, lead, sulfur dioxide, nitrogen oxides, particulates, and various other heavy metals.Chemically, coal is  mostly carbon, which, when burned, reacts with oxygen in the air to produce carbon dioxide, a heat-trapping gas. When released into the atmosphere, carbon dioxide works like a blanket, warming the earth above normal limits.

Related image3.Deforestation: Deforestation is the second leading cause of global warming and produces about 24% of global greenhouse gas emissions. Scientist say that deforestation in tropical rainforests adds more carbon dioxide to the atmosphere than the sum total of all the cars and trucks on the world’s roads.Large scale deforestation to build shelter,roads,localities have badly affected the ecosystem by increasing CO2 levels in the atmosphere and also affecting animal habitats badly;thereby leading to extinction of wild species.Forests are home to 80% of the world’s terrestrial biodiversity, according to the International Union of Concerned Scientists.
 

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