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Canada

Canada. Environmental Issues. GPS & E.Q. GPS: SS6G7a. Explain the major environmental concerns of Canada regarding acid rain and pollution of the Great Lakes, the extraction and use of natural resources on the Canadian Shield, and timber resources.

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Canada

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  1. Canada Environmental Issues

  2. GPS & E.Q. GPS: SS6G7a. Explain the major environmental concerns of Canada regarding acid rain and pollution of the Great Lakes, the extraction and use of natural resources on the Canadian Shield, and timber resources. E.Q.: How have acid rain, pollution, mining, and the timber industry impacted Canada?

  3. Vocabulary • Extraction: removal • Acid rain: acidic clouds or rain droplets • Algal bloom: rapid increase of algae in lakes • Slag: leftover rocks from mining • Clear-cutting: cutting down all the trees in an area

  4. ACID RAIN

  5. PROBLEM • Dead Trees! Dead Fish! Damaged buildings & statues! • Causes: burning fossil fuels (cars & factories) makes sulfur dioxide, carbon dioxide, nitrogen dioxide • SO2 , CO2 , NO2+ water in the air = ACID RAIN • KILLS plants, damages/kills trees, pollutes lakes & rivers, kills fish, damages stone buildings & statues

  6. SOLUTION • Canada passed laws to limit pollution • Cleaner factories & cars • Walk/bus/bike to work • Still a problem: wind currents carry pollution from U.S. to Canada (50 – 75% comes from US!)

  7. EXTRACTION & USE of NATURAL RESOURCES on the CANADIAN SHIELD

  8. PROBLEM • Dead plants! Dead fish! Poisoned water! • Causes: Mining • Blasting & digging with heavy machines • Dumping slag • Releasing SO2 into air • Dumping chemicals into rivers & streams

  9. SOLUTION • Canada’s gov’t has made new rules for mining to reduce the amount of pollution in waterways

  10. GREAT LAKES POLLUTION

  11. PROBLEM • Dead fish! • Causes: Factories dumped phosphorus & human waste into Great Lakes • Phosphorus is used in fertilizers, pesticides, toothpaste, detergents, explosives • It causes algal bloom • Algal bloom kills fish and plants in lakes

  12. SOLUTION • 1971: Great Lakes Water Quality Agreement (U.S. & Canada); renewed 2002 • Goal is to restore lakes’ environment by keeping chemicals out of lakes & reducing human sewage dumped into lakes • 1972: gov’ts of Canada & U.S. signed agreement to reduce production of phosphorus

  13. TIMBER INDUSTRY

  14. PROBLEM • No trees! No animal homes! Less clean air! • Causes: clear-cutting • Causes reduced water quality, erosion, loss of wildlife habitat • Heavy machines compact forest floor – hard for new plants to grow

  15. SOLUTION • Canada’s gov’t & industries plant millions of seeds & seedlings each year • Billions of dollars are spent to manage & protect the forests • $100 million or more is spent each year by the logging industry to protect wildlife & habitats

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