Global warming By Liew Chin Yee
Joan Tan
G
lobal warming is the gradual increase in the temperature of the earth's atmosphere. The increase of temperature is due to the greenhouse gases such as carbon dioxide, water vapor, nitrous oxide and methane which trap heat and light from the sun in the earth’s atmosphere. When living organisms fail to adapt to the current temperature, they faces disposal. When trees are cut down or fossil fuels are burn, they release carbon dioxide into the air which increases the greenhouse effect. Mass deforestation in the world at an unprecedented rate worsens the problem. Even without the contribution of human activities, the earth has been experiencing climate change in the past. Now, the climate has become more serious due to the involvement of human activities. Global warming also is the current climb in the average temperature and is projected persistence. The scientific research shows that global warming is initiated by human activities such as regular melting of glaciers.