Global Warming (Angela 201)
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Global Warming (Angela 201)

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    Global Warming (Angela 201) Global Warming (Angela 201) Presentation Transcript

    • By Angela (2) Geography
    • Global warming
      • Global Warming is defined as the increase of the average temperature on Earth. As the Earth is getting hotter, disasters like hurricanes, droughts and floods are getting more frequent.
    • Ozone depletion
      • Ozone depletion describes two distinct, but related observations: a slow, steady decline of about 4% per decade in the total volume of ozone in Earth's stratosphere (ozone layer) since the late 1970s, and a much larger, but seasonal, decrease in stratospheric ozone over.
    • Greenhouse effect
      • Greenhouse gases are gases in an atmosphere that absorb and emit radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. The main greenhouse gases in the Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone. In our solar system, the atmospheres of Venus, Mars and Titan also contain gases that cause greenhouse effects. Greenhouse gases greatly affect the temperature of the Earth.
    • Natural Causes
      • Natural causes are causes created by nature.
      • One natural cause is a release of methane gas from arctic tundra and wetlands. Methane is a greenhouse gas. A greenhouse gas is a gas that traps heat in the earth's atmosphere. Another natural cause is that the earth goes through a cycle of climate change. This climate change usually lasts about 40,000 years.
    • Man-made causes
      • Man-made causes probably do the most damage.
      • Pollution is one of the biggest man-made problems.
      • Burning fossil fuels is one thing that causes pollution.
      • Another major man-made cause of Global Warming is population.
      • More people means more food, and more methods of transportation
    • Effects
      • Unstable Agriculture and Economy
      • Spread of diseases
      • Rising sea level
      • Storms and floods
      • Drought
    • Solutions to global warming
      • Use public transport rather than using cars.
      • Cut down less trees.
      • Use energy saving electrical appliances.
    • Why Global warming?
      • Global warming is quite an easy topic and I want everyone to know that global warming is real and want them to help prevent global warming from happening too fast.
      • Global warming is a serious problem so I want them to know.
    • THANK YOU!