Causes, Effects and Possible Solutions to Global Warming

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The Causes, Effects and Possible Solutions to Global Warming

Global warming is a problem that threatens the whole world. Though it

has had little noticeable impact on the world so far, its potential

impact could be disastrous which is why global warming has become an

issue ever present in the media and for governments. Global warming is

not a new phenomenon. The sun warms the Earth's surface and to stop it

over-heating the heat energy is radiated back through the atmosphere

and into space. Gases such as carbon dioxide, methane, CFC's and

nitrogen oxides trap some of this heat thereby warming the lower

atmosphere, which in turn warms the Earth's surface. This is the

'greenhouse effect' and is essential to life, as without it the earth

would be so cold it would be uninhabitable. However global warming is

attributed to the greenhouse effect as the increase in greenhouse

gases being released into the atmosphere by humans slowly warm the

Earth, potentially changing the world's climate causing sea levels to

rise and land to be flooded.

The evidence clearly shows a steady increase in world temperature

since 1980. Before this time the temperature had fluctuated, though

generally rising and the average 30 temperature between 1961 to 1990

was 14°C. However the most dramatic increases in temperature have been

in the nineties where every year has had a higher temperature than

this average. Over the past 100 years the average global temperature

has risen by 0.5°C. The increase in temperature has a positive

correlation with the increase of carbon dioxide in the atmosphere.

Since the industrial revolution the total cumulative carbon emissions

...

... middle of paper ...

...rget for reducing emissions

and in doing so will be able to trade 'carbon credits' with other

countries which could be worth as much as £100m. However the reduction

in emissions of 12.5% is though by environmentalists to be too small

and that the target should be nearer 60%. The effects of CFC's are

well known and the use of them in manufacturing is decreasing and may

eventually be banned. New environmentally friendly fuels have been

developed and now cars can be run on gas.

However, it has never been proved that greenhouse gases are the main

cause of global warming though scientists have yet to discover if

anything else is to blame. In the meantime, governments work on the

basis that they are to blame and if global warming is to be slowed

down then more policies on greenhouse gas emissions need to be

introduced.

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