Global warming is the process when the Earth heats up, and the temperature rises. This happens when there is an increase in the production of gases like carbon dioxide, water vapor, nitrous oxide and methane, which are known as greenhouse gases. These greenhouse gases trap heat and light from the Sun in the Earth's atmosphere, and this
in turn, increases the temperature, and causes global warming. Did you know the beginning of the 20th centuary, the average temperature of the Earth has risen by 0.8 degree Celsius? Global warming hurts people, animals and plants. In fact many cannot take the change so they die out.