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### Protecting Our Ozone Layer and Combating Global Warming ###

The ozone layer is a thin layer of oxygen that protects life on Earth by blocking harmful UV rays from the sun. Despite its importance, this protective layer has been compromised by chlorofluorocarbons (CFCs) used in refrigerators, air conditioners, and aerosols. The Montreal Protocol of 1987 aimed to phase out CFCs, but challenges remain. Global warming exacerbates risks like violent storms and melting glaciers, affecting wildlife, such as polar bears, and ecosystems. The Kyoto Protocol seeks to reduce greenhouse emissions, but more action is needed to mitigate climate change effectively. ###

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### Protecting Our Ozone Layer and Combating Global Warming ###

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  1. Environment Part Two

  2. Ozone Layer • Thin layer of oxygen in the atmosphere that blocks UV rays from the sun. • UV harms people, animals, plants and esp. plankton • Ozone layer was/is destroyed by CFCs • Chlorofluorocarbons • Refrigerators, air conditioners, aerosol spray cans

  3. Montreal Protocol 1987 Developing countries could use CFCs until 2000 Industrialized nations cut use of CFCs Still problems today All CFCs need to be phased out

  4. Global Warming Pg 431 Atmosphere traps heat energy from the sun Added gases from people?, vulcanoes, meteor impacts increse CO2 levels in the atmosphere more heat energy is trapped Temperature increases

  5. Effects may include • More violent storms • Melting glaciers • Polar ice caps • Increased sea levels • Plant and animal life

  6. Canada and Global Warming • Problems in the North • Polar Bears • Earlier spring • Loss of permafrost = shrinking shorelines • Warmer waters and fewer plankton=less salmon • Tourism/ Winter sports • Forest fires/ drought

  7. Kyoto Protocol Reduce greenhouse emissions by 6% by 2012 We are nowhere near reaching this goal!!!! Which province has come under fire lately for its greenhouse gas emissions

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