Floods in Santa Catarina, storms in Rio De Janeiro, torrential waves of heat or snowstorms in the hemisphere North. The recent natural catastrophes had not occurred by chance, had been the nature vociferating because of the indifference accumulated per decades. The average temperature of the oceans goes up dangerously to each year, gradual and, for the action of what it was stipulated to call effect greenhouse. It is consensus, enters the scientists of all the parts of the globe, that these facts directly are related to the global heating. Consequncia, over all, of the fsseis fuel burning, that is the derivatives of the oil. This type of burning generates gases as the ozone, dioxide of carbon, methane, nitrous oxide and carbon monoxide, that are of difficult dispersion.
They form a barrier that makes it difficult the waste of the heat, generating already cited effect greenhouse. The relation ' ' cause and efeito' ' it is implacable. A time that the temperature of the oceans goes up, calotas polar melts. In addition, heat cause dilatao and with water is not different, its volume increases. This is the cause. The effect is the advance of the oceans in the direction of the littoral cities, beyond the biggest evaporation of its waters, that heats airflows.
When entering in contanto with the airflows cold that come of the polar regions, become and hurricanes they are formed, causing each time estragos. This explains the reason of Brazil, until little uninjured time, to have entered in the route of hurricanes. The world already opened the eyes for what already it left of being threat. Actions aiming at the reduction of the emission of the gases that causes the effect greenhouse, either for the action of the forest fires, either for the fsseis fuel burning, are being argued. In 1997 a world-wide conference had place in Japan that congregated leaders of 160 countries more than.