jueves, 18 de marzo de 2010

Environmental issues


Environmental Issues; this issues are situations that affect us not only in the present but , rather they are situations and behaviors that if continue to occur will only bring negative and devastating consequences; that is why we must be aware and make others take awareness of them!

Nowadays there are a high number of environmental issues that affect our entire planet, among these global issues, there is overfishing and ecological disruption; and as far as my local community there is the issue of drought.

The issue that interests me most would be the one in my local community; but what is drought?

First of all Drought is an extended period of months or years when a region notes a deficiency in its water supply. Generally, this occurs when a region receives consistently below average precipitation. It can have a substantial impact on the ecosystem and agriculture of the affected region. Drought is a normal, recurring feature of the climate in most parts of the world.

Some of its causes are, the fact that generally, rainfall is related to the amount of water vapor in the atmosphere, combined with the upward forcing of the air mass containing that water vapor. If either of these is reduced, the result is a drought. Also oceanic and atmospheric weather cycles such as the El Niño-Southern Oscillation (ENSO) make drought a regular recurring feature of the Americas along the Pacific coast and Australia, which explains why my country and local community goes through longs periods of time with an insufficient water supply that will satisfy the needs of the resident population.

As a result of this environmental issue we can see there can be agricultural, health, economic and social consequences; this result can vary according to the communities' vulnerability. Drought is rarely if ever the sole cause of famine; socio-political factors such as extreme widespread poverty play a major role. Drought can also reduce water quality, because lower water flows reduce dilution of pollutants and increase contamination of remaining water sources. A few common consequences of drought include:

ü --*Diminished crop growth

ü --*Famine due to lack of water for irrigation;

ü --*Habitat damage, affecting both terrestrial and aquatic wildlife.

ü --*Malnutrition, dehydration and related diseases;

ü --*Mass migration, resulting in internal displacement and international refugees;

ü -*Reduced electricity production due to insufficient available coolant for power stations; and reduced water flow through hydroelectric dams.

ü -- *Shortages of water for industrial users

ü --*Social unrest

The reason why the local issue interests me more than the global one, is because the consequences affect me directly so I would like to know more about the causes and have a deeper knowledge and information on the subject, in order to take part in an initiative that can help find a solution to this problem which affects us all as a living community.

Visit the following link to find some incredible statistics regarding the planet WE all live in!

--> EARTH CLOCK! <--




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