
Nowadays, all of us have heard a bout the global warming, which is how our planet is getting dramatically changing in temperature, which is in increasing. In this essay, I will talk about the most important problems facing the world today.First as we know from the statistics and from studies as example Al Gore studied that the temperature in the earth increasing today more than any time in the history. Why it is risen more, I will say because of many reasons such as the increase in the number of population as a result increase in the number of cars and use a lot of fossil fuels. All of that will effect the Green house by produce a lot of carbon dioxide, which gone to make the layer which in the top of atmosphere thicker. This expansion of the layer will not allow the sun waves to go out of our planet more than before. Because of it today we have many places the water in it is decreasing as example the lake in Darfore that, disappear today and other places like north pole, which is starting to melt.