Greenhouse effect & Global warming

Our planet’s heating system

The earth is surrounded by a blanket of gases that we call the Atmosphere. It is made up of-

  • 78% Nitrogen
  • 21% Oxygen
  • Other 1% is made up of other gases incl. CO2

The Greenhouse effect

The sun sends short-wave energy through the atmosphere to the earth.

The earth’s surface then deflects back long-wave energy back into the atmosphere but not all can get out which is why some heat remains.

This is called the greenhouse effect because the atmosphere acts like a greenhouse around our planet. We need this heat in order to survive.

Greenhouse effect

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Global warming

This is seen as one of the biggest challenges that has ever faced humanity. It may cause death and destruction on a massive scale, and human activities may be to blame for it.

Human activities are producing lots of Greenhouse Gases such as Carbon Dioxide, Methane and CFC’s. These gases trap more of the sun’s heat and are causing our atmosphere to get warmer.

What activities?

  • Burning fossil fuels like coal, Oil and gas.
  • Cutting down forests that get rid of Co2 and produce oxygen
  • More household waste that produces methane
  • Produce CFC’s from plastics and fridges

CfC’s destroy the Ozone layer which protects us from the harmful Uv rays that cause skin cancer.

Likely effects of Global warming

  • Rising sea levels
  • Climate change
  • Increased desertification

How Ireland might be affected

  • More extreme weather
  • Flood low lying areas (Dublin, Cork and Galway city centres)
  • North Atlantic drift might shut off

What can we do

  • Conserve energy
  • Use renewable energy
  • Plant more trees

global warming impacts

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Some of the impacts Global Warming will have.

Global Warming and the

Ozone Layer Video

Now let Coldplay help you learn about Global Warming!