All posts tagged "methane"

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  719

  Environment

  Speech on Hydrofluorocarbons Heating the Planet

  HFCs or hydrofluorocarbons are gases, manufactured for use in refrigeration, air conditioning, foam blowing, aerosols, fire protection, and solvents. They, unfortunately, have...

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  948

  Education

  Speech on Global Warming

  Global warming is the most dangerous phenomenon for humans. Below, we have posted few short speeches on global warming, which will be...