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# Human Impact On the Environment

Extracts from this document...

Introduction

Human Impact on the Environment In this coursework I am going to investigate the impact of human activity on the environment. I am going to do this by looking at the possible link between changing carbon dioxide levels in the air and global warming. Global Land Temperature 1860 The graph above shows the change in air temperature from 1860 to 2000. The rate at which the air temperature has increased has been constant because the change in air temperature is a straight line (line of best fit). This shows us that there is a linear relationship. The graph has a positive correlation because the line is going up and the temperature is increasing. As years go by the temperature rises with it. This is shown in the graph because in 1860 the temperature was -0.1�C whereas in 2000 the temperature was 0.7�C, this shows that there has been a increase of 0.8�C over the 140 years; this means that the surface air temperature has been gradually rising. The graph has a curved line which means that the numbers don't have a consistent rate of change and don't follow a precise order. There is a link between the change in air temperature and the thickness of ice because as the temperature of surface air increases the thickness of ice in the arctic sea decreases. This is a linear relationship because as one increases the other decreases. An example for this would be in 1960 where the surface air temperature was 0.3�C and the thickness of ice in the Nansen Basin located in the Arctic Sea in the years 1958 to 1976 was 3.8 metres. Whereas 40 years after in the year 2000 the temperature of surface air was 0.7, this shows that the surface air temperature has increased by 0.5�C. Alongside this change the thickness of ice had decreased to 2.2 metres in the years 1993 to 1997. ...read more.

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Conclusion

This source of energy is better than solar power in the UK as it isn't sunny that much and hardly any electricity will be produced whereas it is always windy and wind turbines will work most of the time throughout the year. Solar power would be least reliable in the UK but in other locations such as Africa it is always sunny and people don't always have access to electricity so they can use solar panels to make their own electricity. Wave power is complicated as a station has to be built in the sea which is expensive and really hard to build. This is much too complicated and instead we can use wind power which is very reliable and is easy to start and isn't too expensive and doesn't require maintenance. I know that wind turbines take a lot of space but they can be made on unused land near the motorways and it is already very noisy there so it won't really affect anyone as hardly any people live near motorways. They can be built in the country side where no one lives so no one will be affected by it being there. It is the easiest and quickest way of producing electricity if they are built on hills as it is always windy there. They will be efficient and will provide power without damaging the environment and won't release any pollution into the air or atmosphere what so ever. They have no damaging effects on the environment and they are being developed to be quieter as technology is moving on by making them aerodynamic. By doing this they can be made in city areas as they won't produce too much noise pollution. They don't damage the views that much and many tourists think they are a work of art built into the countryside. If people do think it ruins the view it is better than global warming. ?? ?? ?? ?? Arslaan Asif 33125 6027 Human Impact on the Environment CDA 1 ...read more.

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