It's Gettin' Hot in Here!

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    It's Gettin' Hot in Here!
    Presented by :
    ECOSCI
    The Academy of Mt. St. Ursula
    Global Warming – What is it?
    Rise in earth’s temperature
    Results from changes in the natural environment
    Caused by too much carbon dioxide
    The Greenhouse Effect
    Solar radiation from the Sun reaches the Earth’s atmosphere
    The surface of the Earth absorbs most of the short-rayed insolation and later releases this heat in the form of infrared radiation into the atmosphere.
    Some of the heat is absorbed by particles known as “greenhouse gases.”
    The heat retained by the gases acts as a “heat blanket.”
    The Greenhouse Effect
    Without With
    Burning of fossil fuels
    The burning of fossil fuels releases Carbon dioxide in the atmosphere.
    In the past 150 years, burning fossil fuels has caused a 25 % increase in Carbon dioxide emissions.
    Carbon dioxide
    Burning of fossil fuels
    In the last 200 years:
    Nitrous oxide has increased 17%.
    Methane has increased 150%!!
    CO2 | NH4 | N20
    The Ties Between Sardines & Global Warming
    The over-hunting of sardines has caused higher levels of phytoplankton in the ocean.
    While living, phytoplankton release oxygen into the atmosphere and use Carbon for photosynthesis
    When they die, their decay releases large amounts of methane and the poisonous gas, hydrogen sulfide. It also uses large amounts of oxygen.
    Sardines & Global Warming (Cont.)
    Methane is 21 times more effective than carbon dioxide in maintaining heat in the atmosphere.
    This results in the deaths of numerous marine animal

    資料の原本内容( テキストデータ全体をみる )

    It's Gettin' Hot in Here!
    Presented by :
    ECOSCI
    The Academy of Mt. St. Ursula
    Global Warming – What is it?
    Rise in earth’s temperature
    Results from changes in the natural environment
    Caused by too much carbon dioxide
    The Greenhouse Effect
    Solar radiation from the Sun reaches the Earth’s atmosphere
    The surface of the Earth absorbs most of the short-rayed insolation and later releases this heat in the form of infrared radiation into the atmosphere.
    Some of the heat is absorbed by particles know..

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