Slides on the Greenhouse effect and Global Warming for Junior Cert Geography.

1. Global Warming

5.  78% Nitrogen
 21% Oxygen
 1% Miscellaneous gases (incl Carbon Dioxide, Methane and
other Greenhouse Gases)
 The greenhouse gases help keep Earth warm – without it the
entire Earth would be frozen over
 But if we have too much Greenhouse gases we can
overheat….

7.  Burning of fossil fuels releases Carbon Dioxide and Nitrous
Oxide into the Atmosphere
 Methane from agricultural activity
 CFC’s from past use of aerosols
 Deforestation means trees (who would normally absorb the
extra greenhouse gases) cannot do so

8.  Climate Change – More droughts and extreme storms

9.  Agricultural impacts – food supply threatened as land dries
out

11.  Clean Energy – no greenhouse gases (e.g Solar and
Wind Power)
 Reduce deforestation
 Plant new forests
 Reduce, Reuse and Recycle materials
 Use energy efficient appliances
 Behaviour change – walk/cycle instead of driving