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Understanding Climate Change: Causes, Effects, Solutions

Learn about the causes and effects of climate change, the role of greenhouse gases, and potential solutions. Explore activities to measure your ecological footprint and understand your impact on the environment.

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Understanding Climate Change: Causes, Effects, Solutions

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  1. Earth Day 2006 ? Climate Change – Causes and Effects

  2. Introduction • World Earth Day • Was first held on 22nd April 1970 • Promotes environmental citizenship • Has a worldwide network of campaigners • Thousands of events and millions of participants • Climate change is the 2006 theme

  3. Climate Change - Cause • Increased concentration of greenhouse gases in the atmosphere • This creates a rise in average temperature • The temperature change affects world climate systems • The climate changes as a result

  4. Climate Change - Effects • Temperature Rises • Droughts • Floods • Hurricanes • Rising Sea levels • Biodiversity Reduced • Plants and animals die out • Economic Damage • Agriculture affected • Infrastructure destroyed

  5. The Greenhouse Effect • Atmosphere allows energy (as sunlight) in • Only lets some of that energy (as infrared heat) escape • Having more greenhouse gases in the atmosphere means that less energy escapes • More energy is trapped and so the earth warms up

  6. Greenhouse Gases • Carbon DioxideCO2 • MethaneCH4 • CFCs and HFCs • Nitrous OxidesN2O • Water VapourH2O

  7. Sources of Greenhouse Gasses • Power stations • Transport • Industry • Agriculture • The natural world

  8. Solutions? • Can we reduce emissions of greenhouse gases through… • Changes in society? • Change lifestyles • Change laws • Changes in technology? • New technologies • Energy efficiency

  9. Barriers • Who would choose to have less, eat less and go on holiday less? • Would governmentsforce people to change? • Does this echo communism? • Who will pay for the technological solutions? • Would you want to pay higher taxes? • It is an International problem so it needs international agreements

  10. Activities • Fact sheet • Are you surprised by any of these facts? • Ecological footprint • Measures our impact on the earth’s resources • Calculates how much land is required to produce the resources we consume and absorb all the waste we produce • Answer the questions on the sheet and add up your scores. • What was your score?

  11. Conclusions • Our lifestyles are affecting the environment • Local emissions have a global effect • No easy solutions and little time to find them • Ecological Footprints help show us our personal contribution to climate change • People with the smallest footprints will be among those who will suffer the most from climate change

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