The definition of global warming is the increasing of the temperature near the surface of the earth and ocean, mainly reasoned by the exhaustion of the industrial work and greenhouse development resulted by the air pollution। The greenhouse gases are covering the earth atmospheric layer controlling the heat and sunlight infrared and its increasing causes the climate change because of the amount of heat they hold inside the greenhouse entire shell and it is considered as a result of human activities because of the human burning fossil and fuel। The Intergovernmental Panel climate change (IPCC) say the global temp rose from 0.74+0.18 during the past century and giving a study of the period from 1990 to 2100 projected that global surface temperatures are likely to increase by 1.1 to 6.4 °C and the rising will continue for millennium even if the greenhouse gas level stabilized. The production of food will decrease because of the temp rise and many other things will effected by this heating climate changes.
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