Essay on global warming in 150 words
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Global warming essay for students Introduction Global warming is defined as the raising of Earth's temperature which causes changes in the climate. It is caused due to natural and man made activities. Causes of global warming Natural activities 1. The main reason is the presence of greenhouse gases such as CO2, nitrous oxide, methane and CFC's (Choro fluorocarbon). The re-radiated Solar energy from the sun to the Earth surface is called greenhouse effect. This leads to increase in Earth's temperature. 2. Volcanic eruption. Man made activities 1. Increase in transportation The gases such as carbon dioxide, nitrous oxide, nitrogen dioxide, etc released from the vehicles causes increase in the greenhouse gases. This leads to global warming. 2. Deforestation It refers to the removal of forest area for land cultivation, urbanization, mining, timber extraction, etc. This causes soil erosion, flooding and increase of greenhouse gases. This ...