Wednesday, March 21, 2012

What are the causes of Global Warming?

There are many potential causes of Global Warming, some are natural causes and others are manmade.


Some natural causes:
  • The release of methane gas from artic tundras and wetlands
    • Greenhouse gases such as methane gas cause heat to build up in the Earth's atmosphere
  • The Earth experiences a cycle of climate change every 40,000 years
Some manmade causes:
  • Burning fossil fuels (which causes pollution)
    • When fossil fuels are burned, they release carbon dioxide which is a greenhouse gas
  • Mining coal and oil release methane gas
  • The large population means the need for more food and more transportation
    • More food means more livestock which means more methane being released into the atmosphere
      • Also, manure contains methane
    • More transportation means more cars which means more fossil fuels are being burned up to fuel our cars
    • Also, the greater the population means there are more people exhaling carbon dioxide
  • Many of the trees that would be taking up this carbon dioxide to use for photosynthesis are being cut down so we now have an excess amount of carbon dioxide in the atmosphere
As you can see, the manmade causes far outweigh the natural causes, and they are also more dangerous. If more people were to recognize this problem and realize we are taking advantage of our limited resources, we could greatly help this Earth. People should be aware of the causes of global warming in order to see and prevent this problem from developing further. 

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