Global warming- live green

The climate has always changed, the climate change problem is that in the last century, the pace of these changes has been accelerated so anomalous, to such an extent that affects the planetary life. In seeking the cause of this acceleration, scientists found a direct relationship between global warming or climate change and increasing emissions of greenhouse gases (GHGs), caused primarily by industrialized societies.

A phenomenon of concern to world: global warming and its direct impact, climate change, which occupies much of the efforts of the international scientific community to study and control, because, they say, threatens the future of humanity.

Why so much concern? Leading scientists agree that rising concentrations of greenhouse gases in the Earth’s atmosphere is causing changes in climate. Also agree that emissions of greenhouse gases (GHGs) have been very intense since the Industrial Revolution, at which point the action of man over nature was intense.

Originally a natural phenomenon

The greenhouse effect is a natural phenomenon that enables life on Earth. It is caused by a number of gases that are in the atmosphere, causing the heat of the sun that the planet reflects caught keeping the average global temperature to +15 degrees centigrade, favorable to life, instead of -18 º Celsius, that would be harmful.

Thus, for many millions of years, the natural greenhouse effect kept the Earth’s climate to a relatively stable temperature and allowed to develop with life. Greenhouse gases retained the sun’s heat near the earth’s surface, helping to evaporation of surface water to form clouds, which return the water to the Earth in a life cycle that had been kept in balance.

For about 160 thousand years, the Earth had two periods in which global mean temperatures were about 5 degrees centigrade lower than the current ones. The change was slow, it took several thousand years out of the ice age. Now, however, concentrations of greenhouse gases in the atmosphere are increasing rapidly, because the world burn increasing amounts of fossil fuels and destroying forests and grasslands, which might otherwise absorb carbon dioxide and encouraging equilibrium temperature.

In response, the international scientific community has warned that if the developing world, population growth and energy consumption based on fossil fuels continues to increase at the current pace, by 2050 the concentrations of carbon dioxide will have doubled over to which it had before the Industrial Revolution. This could have disastrous consequences for the living planet.