Global Warming

Recently, people are living the consequences of Global Warming. Each year, the changes of temperatures are unbearable. Apparently there aren't four seasons, the differences between spring and summer, or fall and winter, are vanish. 

Global warming is a phenomenon of the 20th century. The temperatures are increasing in the earthly atmosphere and in the oceans (the average temperature of world had increased from half of the 20th century to the present). 

The true is that scientists had tried during decades to understand the phenomenon, and they have come to a big conclusion: the global warming can be the cause of the greenhouse gases send out by humans. 

There are many greenhouse gases that are responsible of warming. Humans emit gases in different forms. The majority of gases emissions are of combustion process in the cars, factories, and production of electricity. The fundamental gas in the contamination is the dioxide of carbon (CO2), but is not the only one responsible of this. The methane gas released in dumping site and for farming activity, the nitrous oxide (N2O) in the fertilizer, and other gases used in the refrigeration and industrial process,  are also responsible of holding  the heat prisoner in the Earth's atmosphere. 

We must realize about this. Global warming is a great problem, and we should confront this, because if we continue to pollute the atmosphere, we will remain without a world.