Of course, you’ve heard about global warming many times. Now you’re getting closer to it by writing this essay about global warming . This natural phenomenon often comes with the so-called greenhouse effect. That’s what professional geologists keep talking about. The greenhouse effect can be defined as a natural process, which keeps our native planet at livable temperatures. Energy obtained from the sun warms the planet, when its heat rays get absorbed by greenhouse gasses and can’t go beyond the atmosphere. As for the most common greenhouse gasses we can point out to carbon dioxide, water vapor and methane. Without these gasses just few sun rays would be absorbed and the planet would be very cold. On the other hand, when too many rays are absorbed by the planet’s atmosphere, it warms and as a result we’re facing global warming.