воскресенье, 6 мая 2012 г.

Fossil fuels and problems associated with them

From the beginning of the time man’s life has been depending on fuels of many kinds.At first people used wood,leaves and hay.But with time we are explored the earth and began to consume fossil fuels such as coal,petroleum,natural gas,etc.Nowadays,fuels are continuously following human progress and it is impossible to separate them from civilized life.

Despite many advantages we have plenty of problems that are caused by inefficient usage of fuels.In the first place it causes environmental damage.The burning of coal sends ash into the air and other harmful materials,which in tern create smog.Another type of fuel ,natural gas,is important for industrial needs as it can be delivered in a compressed form in any volume proportional to any spot around the planet.It is commonly held belief that as a result of combustion of natural gas,carbon dioxide and some poisonous gases are released.Where the first mentioned above has an impact on Global warming and the second falls as acid rain destroying crops.The last type of fossil fuels,that some people call the only reason for wars,is petroleum also known in everyday life as oil.

A few experts claim that cars fueled by petroleum are a major source of carbon monoxide emissions which cause health problems for humans ,right up to heart attack and lung cancer.In addition to this the spillage of oil on the surface of water from mobile oil platform and oil tankers has a most catastrophic effect on the aquatic world and its inhabitants.With the spread of fuel on the top,a dense layer of dangerous substance emerges.This thick layer prevents aqua dwellers from breathing and as well as that it can suck in birds which are landing on the top of the water.

Unfortunately fossil fuels trigger many arguments.However it has been forecast that we are running out of them.Of course,it will not happen in near future but eventually we will no longer be able to rely on them to power our economies.

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