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Cool Facts About Global Warming

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Global Warming is a result of human ... The result is a long-term rise in the average temperature of the Earth - global warming ... Sources of Clean Energy ... – PowerPoint PPT presentation

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Title: Cool Facts About Global Warming


1
Cool Facts About Global Warming
  • Donna Bowman
  • Educational Outreach Coordinator
  • SCDHEC - Bureau of Air Quality

2
What is Global Warming?
  • Global Warming is a result of human activities
    affecting climate in serious and immediate ways -
    intensifying a natural phenomenon called the
    greenhouse effect.
  • The result is a long-term rise in the average
    temperature of the Earth - global warming

3
What Causes Global Warming?
  • The burning of fossil fuels releases large
    quantities of gases such as carbon dioxide and
    nitrous oxide into the atmosphere. Decaying
    garbage in landfills releases methane, another
    potent gas.
  • All of these gases prevent the suns energy from
    escaping back into space.

4
What Causes Global Warming?
  • Trapping heat close to the surface of the earth
    raises global temperatures, turning our world
    into a planetary greenhouse.
  • Since the Industrial Revolution, concentrations
    of these greenhouse gases have increased
    substantially.

5
How Do We Know Its Happening?
  • Check the thermometer
  • The 10 warmest years of the past century occurred
    after 1980.
  • There was also an increase in precipitation in
    the last century.
  • These two phenomena - along with a decrease in
    snow and Arctic ice and a rise in sea level - are
    all consistent with global warming.

6
How Can We Help?
  • Burn fewer fossil fuels
  • Reduce the release of greenhouse gases into the
    atmosphere
  • Plant trees - they absorb carbon dioxide
  • Buy fuel-smart cars
  • Reduce, reuse, recycle
  • Make your home more energy efficient

7
Why Should We Care?
  • A warmer climate makes moisture evaporate more
    quickly causing more damaging and costly droughts
    in some areas and heavier rains in others.
  • Deadly diseases that exist primarily in warmer
    climates could spread into other parts of the
    world.

8
Why Should We Care?
  • Communities that border coastal areas would have
    to relocate houses or spend hundreds of millions
    of dollars per year on projects to hold back the
    sea.
  • Opportunities to enjoy hunting and fishing could
    dwindle as habitats in certain parts of the
    country change before the fish and wildlife that
    live there have a chance to adapt

9
Why Should We Care?
  • Variations in water temperature could affect fish
    populations.
  • Small temperature fluctuations can make a big
    difference. In the most recent ice age, annual
    global temperatures averaged roughly 9 degrees
    Fahrenheit colder that they are today.

10
What Have We Done?
  • Many new homes and buildings use EPAs ENERGY
    STAR programs. They use 30 less energy than
    more standard designs. Even older homes can be
    upgraded to become 20 more efficient.
  • Wind power already provides enough electricity
    for one million Americans.

11
What Have We Done?
  • The average new vehicle today gets double the
    number of miles per gallon that cars got in 1973.
    Now we are trying to produce automobiles that
    are three times more fuel efficient.
  • Many consumers and businesses are starting to
    rely on vehicles that run efficiently on
    electricity, solar power, or natural gas.

12
What Have We Done?
  • More than 2,000 companies have cut their energy
    consumption substantially by using
    energy-efficient lighting.
  • Innovative projects across the country are
    recovering methane and using it to generate
    electricity and boiler steam for space heating or
    converting it to natural gas or fuel for vehicles.

13
Sources of Clean Energy
  • Solar power - harnesses energy from the sun to
    heat our homes and provide domestic hot water.
  • Geothermal power - taps into natural reservoirs
    of steam and hot water in the earth itself in
    order to draw them to the surface for use as heat
    or to generate electricity for home or industrial
    uses.

14
Sources of Clean Energy
  • Biomass - employs crops and trees specifically
    grown as fuel sources or converts waste products
    from agricultural crops, forestlands, and
    municipal solid wastes into liquid and gas fuels
    for heat or electricity generation.
  • Wind power - uses modern wind-capturing turbines
    to generate electricity.
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