Global warming is one of the biggest problems of our time, it is caused mainly by emissions of pollutants from exhaust from our industries and our cars that enter the air large amounts of harmful gases.

The so-called “greenhouse gases” are primarily chlorofluorocarbons (CFCs) which also include many other molecules that contain chlorine and fluoride are very damaging because of the stratospheric ozone layer.

However the ‘greenhouse effect‘ and the phenomenon of the “ozone hole” are two separate things, as even natural phenomena such as the eruption of a volcano, they are able to issue very high percentages of CO2, equal to those that a whole nation emits in an entire year.

The “Kyoto Protocol” regulate these emissions, and especially those CO2, N2O, CH4. It is an international treaty that has to do with global warming, which was signed in this Japanese city on December 11, 1997 over 160 countries.

The India and China, despite having ratified the Protocol have an obligation to reduce emissions of carbon dioxide even though their population is very large.

These countries in fact have the exemption from these obligations, because during the period of industrialization have not been among the major emitters of greenhouse gases that today we are the cause of climate change.