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What would be the best geo-science solution to stop global warming?

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Introduction

What would be the best geo-science solution to stop global warming?

        Global warming and climate change cause an increase in average global temperatures. Natural events and human activities are believed to be contributing to an increase in average global temperatures. This is mostly caused by increases in “greenhouse” gases such as Carbon Dioxide (CO2). The greenhouse effect is actually a natural process, it helps to keep the Earths temperature warm enough for life to grow, without this process most of the sun’s heat would escape back into space and the Earth’s average temperature would be significantly lower. However, if the greenhouse effect becomes stronger, then more heat gets trapped than needed, and the Earth might become less habitable for humans, plants and animals. Human activity has caused an imbalance in the natural cycle of the greenhouse effect and related processes. Increased greenhouse gases and the greenhouse effect have contributed to an overall warming of the Earth’s climate, leading to a global warming. Even just a 2°C increase can have impacts around the world to biodiversity, agriculture, the oceans etc.  The result can be extreme weather patterns, such as more hurricanes, drought and longer and more

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Middle

        Another idea is having giant reflectors in space. These reflectors will mirror or divert some of the suns rays away from earth.  As we already have several space stations and thousand of man-made objects flying around in space, this idea does not seem totally unrealistic. Trillions of mirrors would have to be fired into space to make a 100,000 mile large sun shield. This would cost at least 17 trillion dollars and it would take decades to get all the parts of the shield up into space and fixed together. In addition to those cost, the mirror pieces would have to be replaced every 50 years. Considering all the disadvantages, this method also seems highly inefficient. Opponents of this project argue that one could use all that money to fight the problem at its root, the emission of greenhouse gases.  

        The previous two ideas were trying to let less of the sun rays get to the Earth, so that our earth gets less warmed up. However they both don’t do anything against the CO2 produced, which means that CO2 will still be trapping to much heat in our atmosphere. The next project aims to reduce the amount of CO2 in our atmosphere by replanting deforested areas. This would be done by dropping seeds from a plane.

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Conclusion

        In conclusion, most of the methods mentioned are not developed enough. We will not be seeing these methods in near future, as they are simply not realistic enough to actually work or they are not efficient enough. I think that we should not be spending lots of money on getting rid of the CO2 that is already in the atmosphere or the global warming up, instead we should put this money into research on an alternative of CO2 outputs, fossil fuels.  This way we would not have the problem of having to much CO2 in our atmosphere, and thus no greenhouse effect.  Based on this conclusion, I think that the tree replanting method and the Helium filled wind turbines are the best solutions, but they are not perfect. There is still a lot to be done until we have a CO2 free world.

Sources:

"Global Warming." Oracle ThinkQuest Library. Web. 18 Oct. 2010. <http://library.thinkquest.org/CR0215471/global_warming.htm>.

Except from the first paragraph the only source I used was the movie we watched in class. I don’t know the name of the movie.


[1]http://library.thinkquest.org/CR0215471/global_warming.htm

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