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Global warming




GLOBAL WARMING

Global warming is a term used to refer to the phenomenon of increased global average temperature l, also of the Earth's atmosphere as well as aceanos.This increase was accentuated in the last decades of the twentieth century and early twenty-first century.
Global warming is associated with climate change. The greenhouse effect is more-productivethat certain atmospheric gases, mainly carbon dioxide is part of the energy that the floor beams, as a result of being heated by solar radiation.
The natural greenhouse effect that creates the Earth'sclimate, temperatures would be cooler than 30 ° C and with this change the oceans would freeze faster and marine life would be extinguished.
To this effect occurs are required these greenhouse gases,but in appropriate proportions.
What concerns them most climatologists is that a rise in this ratio result in an increase in temperature due to heat trapped in the lower atmosphere.
Global warmingcauses an increase in the amount of liquid water from the reduction of mountain glaciers and feared a decrease of ice caps.

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It is expected that the global mean sea level will rise between 9 and99 cm between 1990 and 2010 and if all the ice melt would raise sea level 125 meters.
As the climate becomes warmer evaporation will increase. This would cause an increase in rainfall and moreerosion.
Global warming would alter the distribution of fauna and flora of the planet, this would mean the spread of disease from which some of these animals are carriers. Such is the case of malaria,dengue and yellow fever, whose vectors are certain species of mosquito living in tropical zones.



Additionally an increase in the total amount of biomass produced is not necessarily positive,because it can reduce biodiversity to flourish even a small number of species. Similarly from the point of view of the human economy, an increase in total biomass but a decrease in the crops would be...