Sustainable Use of Resources Using natural resources in a way that doesn’t deplete them 1.Plant a...
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![Page 1: Sustainable Use of Resources Using natural resources in a way that doesn’t deplete them 1.Plant a tree for every one cut down 2.Use biofuels 3.Alternative.](https://reader035.fdocuments.in/reader035/viewer/2022062800/56649e055503460f94af1853/html5/thumbnails/1.jpg)
Sustainable Use of Resources
• Using natural resources in a way that doesn’t deplete them
1. Plant a tree for every one cut down
2. Use biofuels
3. Alternative energies
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Acid Rain• Causes: burning
of fossil fuels and factories with smoke stacks release sulfur into the air making precipitation acidic.
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Acid Rain Effects
• Destroys plant tissues
• Destroys aquatic ecosystems
• Destroys many statues
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Acid Rain on pH scale
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Affects of Acid Rain
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Acid Rain Solutions
• Create laws that limit emissions from smoke stacks.
• Create laws that mandate (force) factory owners to use scrubbers on smoke stacks
• Use cleaner fuel sources
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Most smoke stacks now have scrubbers!
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Global Climate Change
• Increase in the average temperature of the biosphere
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The Evidence
• In the past 120 years the average global temperature has risen .5 degrees Celsius
• The 1990’s was the hottest decade on record
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The Projections
• Computer models suggest that the average global temperatures will increase by 1 to 2 degrees Celsius by 2050.
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The Cause of Climate Change
• Increased amounts of CO2 that enters the atmosphere, from burning of fossil fuels
• Increased amounts of greenhouse gases like methane.
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The Effects of Climate Change• Polar ice caps will melt causing massive
flooding
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The Effects of Climate Change• More severe weather systems or storms
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The Effects of Climate Change
• Increased distribution of insects that carry deadly diseases - MALARIA
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The Effects of Climate Change• The environmental change favors certain
species like rodents, weeds, and insects
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The Effects of Climate Change
• Increased droughts
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Solutions for Climate Change
• Create laws that limit carbon dioxide emissions – The Kyoto Treaty
• Use hybrid/electric cars
• Limit your energy consumption
• Educate people about the issues
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Solutions for Climate Change
• Use of alternative energies
–Wind farms
–Solar farms
–Geothermal energy
–Nuclear energy
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Wind Farms
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Solar Farms
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Geothermal Energy
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Nuclear Energy
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Pros and Cons of Nuclear Energy
PROS:
• Little greenhouse gas emissions
• Readily available technology
• Huge amount of energy is generated from one single plant
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Pros and Cons of Nuclear Energy
CONS:
• Risk of radioactive disaster
• Radioactive waste
• Heats up surrounding water often harming the ecosystem
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Ozone Depletion
• Ozone layer protects the earth from harmful UV rays
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Without Ozone
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Cause of Ozone Depletion
• Emission of Chlorofluorocarbons (CFC’s) into the atmosphere
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Effect of Ozone Depletion
• Increase UV rays increases the skin cancer rates
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Effect of Ozone Depletion
• Other species of plants and animals may also be affected by UV radiation. The species’ genes will mutate sometimes causing cancer, death, or infertility.
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Solution to Ozone Depletion
• The use of CFC’s was banned by international law – Montreal Protocol of 1989