Wikipedia defines global warming is a long-term rise in the average temperature of the Earth's climate system; an aspect of climate change shown by temperature measurements and by multiple effects of warming.
In other words, global warming is the main reason for hotter summers in the world. The melting if glaciers and ice caps resulting in floods and avalanches are due to global warming. Increase in greenhouses gases such as carbon dioxide and chlorofluorocarbons cause global warming. These are called greenhouse gases due to their ability if absorbing infrared radiations of the sun.
Global warming is too serious for the world any longer to ignore its danger or split into opposing factions on it.
Statistics show that presently, surface temperature rises with about 0.2°C degrees per decade. Since 1950, the number of cold days and nights have decreased, and the number of warm days and night has increased. If this will continue in future, life won't be possible on earth.
Human activities are the real culprits for this situation. There is a change in rainfall patterns due to which many areas witness droughts and others witness floods. We are the mankind who are meant to take care of nature. On the contrary, we are the reason for its destruction. In the rise of globalisation and industrialisation, we have forgotten all environmental concerns. Deforestation is increasing day by day. It is the large scale cutting of trees and clearing of forests. Due to overpopulation, the land for settlement is the need of an hour and to tackle that, we don't think about the mother earth. Trees stabilize the proportion of gases in the atmosphere. If there will be no trees, we are entering in a dark hole with no bright future.
The earth lies polluted under its inhabitants; for they have transgressed laws, violated the statutes, broken the everlasting covenant. Therefore a curse devours the earth, and its inhabitants suffer for their guilt.
The industrial revolution has shown us a ray of hope of development, but now it's getting worse. People are suffering from lung related diseases. India fights from the problem of smog after Diwali. Smog is very harmful to human health. It causes irritation in eyes and skin. Visibility becomes very low those days. We burn crackers in happiness, our acts cost us later.
If we don't take the action today, tomorrow will be the End. Let us be awake and fight back against global warming.
Today is the day to start and plant trees around us. It's time to take real actions. Global warming is never going to stop if we neglect this issue now.