Global warming

As I know, global warming is a comprehensive increasing world temperature. Like what we've felt recently, the temperature is very hot. It occurs not only in an area, but also in whole of the world.
Why can it happen?
What does cause it?
Certainly, it because the composition of atmosphere elements change and become unbalanced. Many sources can cause it. I won't talk about all sources. Let me tell the nearest one from us in our daily activities. We use it every day, even every time!
What is it?
It is Electrical Energy. May be the biggest energy used by the humans in the world is Electric Energy. However, how can the electric energy changes the atmospheric concentrations? It doesn't produce any gases as the emission, does it?
YES, IT DOES!
Although we can not see the emission directly from electricity, in fact it contributes so high value. Well, if we only look at the light, at the TV, radio or something else, it will be right that they don't produce any gases as the emission.
However, don't you know how the electric energy is generated? In addition, what is the fuel to generate it? Many power stations use coal as the fuel. When burning the coal, it contributes so high concentration of CO2 and NOx to the atmosphere. The greater we use the electric energy, the higher of CO2 emissions contributed to the air. Additionally, concentration of CO2 in the atmosphere heats up the air temperature. If it occurs continuously, it can bring many disasters following. Like flood, storms, or the ace layer in the poles may melt and the surface of the oceans increases, reducing the land area, even until no land any more!
Do you expect it?
Of coarse no one wants it.
So, what can we do to prevent the disasters? Just by reducing the production of the gas emissions, or reducing the pollutions. Like what I wrote previously about electrical energy. We must maintain to use it effectively. In other hand use electricity only when we do need it. Never leave TV, radio, lamp, etc. turning on.
Finally, I’d like to emphasize that the life of the world is our responsible. Don’t waste the energy because it can make bad disasters.
Think first what we are going to do for the future.
Thank you very much. I hope this short writing can open our brain and give positive energy for better improvement.