sábado, 31 de enero de 2009

That will happen if the poles are melted?

In flat terms it is the increase of the environmental temperature - in the terrestrial bark and the oceans - provoked overcoat for the human activities. To this factor is added the climatic natural cyclical variability. In 1996 the International Panel on climatic Change integrated by 2500 scientists of different countries, admitted that the change on the global climate is possible to detect it in many natural variables of the climate, since it is the temperature of the terrestrial surface, which increased 0.6 °C in the last century, or the emission of CO2 derivative of the burning of fossil fuels, which increase ascends to 6 250 000 million tons.
The group of experts warned then, that if it continues in an indiscriminate way the emission of greenhouse gases as the CO2, the terrestrial temperature might rise between 1 and 3.5 °C, the most rapid index of last 100 000 years, which would impede the adjustment of the ecosystems of the world.
To the date the principal climatic change has been in the atmosphere.

What is the global warming?


Images satelitales indicate that every year vanishes up to 4 % of the cap of ice in the poles of our planet. The World Wide Fond for Nature (WWF) foresees, in addition, an increase in the temperature of between 4 and 7 °C in the next 100 years. In such conditions the north pole might melt completely at the end of the present century, notices the teacher Peter Wadhams, in whom for example if Grooenlandia, which is shaped in 85 % by ice, should come to deretirse completely, the level of the sea would increase in 7 m. An alone meter of increase would put in danger 17,000 million persons who live in the low regions.

Some specialists predict also other consequences: the enormous masses of water of thaw it would affect the marine currents, since the concentration of salt would diminish in the oceans.

Plants of Bambu




With the bamboo beautiful fences can do to him in the gardens, but, sabìas that is one of the species of plants that more CO2 absorb that for example the rose-bushes. Some species of bamboo grow up to 30 centimeters or more. But sòlo big plantations of bambù, podrìan to work as strainer of CO2