Sustainable Use of Resources Using natural resources in a way that doesn’t deplete them 1.Plant a...

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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

Transcript of Sustainable Use of Resources Using natural resources in a way that doesn’t deplete them 1.Plant a...

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.

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