human impacts: atmosphere. global warming an increase in the average temperature of earth because of...
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Human Impacts: Atmosphere
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Global Warming
An increase in the average temperature of earth because of an increase in greenhouse gases.
Definition:
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A ‘blanket’ of greenhouse gases keeps Earth warm.
Cause:
Global Warming
Hot dog
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Gasses such as carbon dioxide and methane trap heat and help our planet support life. This is called the greenhouse effect. It is normal, and essential to life.
Cause:
Global Warming
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Global Warming
Cause:
Increased production of greenhouse gases has enhanced this warming effect, called global warming.
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Global Warming
Effect:
Rise in sea levels and coastal flooding due to melting glaciers.
Changed precipitation patterns.
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Global Warming
Solution:Reduce carbon
dioxide emissions by using less
fossil fuel.Explore alternative
energy source.
Big guy in a little car
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Acid Deposition
Definition: Rain ( and snow, hail, etc.) with a pH below 5.6
Harmful chemicals settle as “dust”
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Cause:
Sulfur dioxide and nitrogen dioxide pollution from the burning of fossil fuels.
Acid Deposition
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Most of New York State’s acid precipitation originates in the mid-west and moves to us in the prevailing winds.
Cause:
Acid Deposition
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Effect:
Destruction of limestone and marble monuments due to increased chemical weathering
Acidification of aquatic ecosystems destroying the life in them.
Acid Deposition
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Damage forests and other plants in a variety of ways
Effect:
Acid Deposition
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Solution:
.Explore alternative energy sources.
Reduce emissions sulfur and nitrogen from industry by use of scrubbers etc.
Reduce use of fossil fuel
Acid Deposition
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Ozone Depletion
Definition:
The reduction of the thin layer of O3 (ozone) that protects the earth from ultraviolet (UV) radiation.
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Ozone Depletion
Cause:
Chloroflurocarbons (CFC’s) pollution from refrigerants and plastics are destroying our thin ozone shield high up in our atmosphere.
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Ozone Depletion
Effect:
It is linked to increased incidence of skin cancers and cataracts in the human population.
Increased UV radiation has been linked to amphibian declines.
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Ozone Depletion
Solution:
Ban CFC’s