You already stopped to think on the Global Heating? Every day we follow in the media climatic catastrophes and the changes that are occurring, quickly, in the world-wide climate. In recent years the changes are happening of fast form very and with effect devastadores. The global Heating is a climatic phenomenon of wide extension, an increase of the global superficial average temperature. The Land receives radiation emitted for the Sun and returns great part of it for the space through heat radiation. The atmospheric pollutants are holding back a part of this radiation that would be reflected for the space, in normal conditions. This restrained part cause an important increase of the globe temperature.
Factors as the intensive and increasing use of energies you did not renew, as the mineral coal and the oil, also the use of the CFC (chlorine/fluorine/carbon). The CFC and its chemistries of substitution are used in refrigerators, conditional air systems, foam, aerosols, equipment against solvent fires and. Consequences of the global heating: The increase of the level of the oceans: with the increase of the temperature in the world, it is provoking the melting of calotas polar. When increasing the water level of the oceans, can occur, future, the submersion of many littoral cities; Growth and sprouting of deserts: the increase of the temperature provokes the death of some animal and vegetal species, unbalancing some ecosystems; Hurricane increase, tufes and cyclones: the increase of the temperature makes with that bigger evaporation of waters of the oceans occurs, potencializando these types of climatic catastrophes; The difference of temperature in regions that presented ameno climate: in the current days heat waves occur. Being that thousands of people will go to suffer with the food and water lack, as consequence of the alterations of the climate. Of its attitudes the future of the Planet and the new generations will result. It makes its part, the hour to start is now! Vanessa Minuzzi Bidinoto, Academic of IX the Semester of Biological Sciences of the URI – Santiago-RS Campus.