Abstract:
Global warming is the long-term warming of the Earth's
surface observed since the pre-industrial era (between
1850 and 1900) due to human activities, primarily the
burning of fossil fuels, increase the levels of greenhouse
gases (GHGs) in the Earth's atmosphere that trap
heat. Burning of fossil fuels for energy electricity, heat,
industry, and transport; Deforestation; excessive use of
chemical fertilizers; and industrial animal products all
increase the concentration of greenhouse gases in the
atmosphere.