global warming final presentation 01

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    Global Warming

    Greatest Threat To Humanity

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    Our Focus

    Global warming Overview

    Causes of global warming

    Effects of global warming

    Control global warming

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    What is Global Warming?

    Global warming is when the earth heats up

    (the temperature rises)

    It happens when greenhouse gases (carbon

    dioxide, water vapor, nitrous oxide, and

    methane) trap heat and light from the sun in

    the earths atmosphere, which increases thetemperature.

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    Global Warming - Examples

    June 2002 Dec 2003

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    Global Warming - Examples

    19142004

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    Main cause

    Raise in normal temperature

    Imbalance in greenhouse effect

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    The Suns energy passes through the carswindshield.

    This energy (heat) is trapped inside thecar and cannot pass back through the

    windshield, causing the inside of the car

    to warm up.

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    Why it happens?

    Burning carbon-containing fossil fuelsproduces carbon dioxide

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    Global Warming - Effects

    Geographical

    effects

    Climate change

    Wildlife

    humans

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    The Arctic Ocean could be ice-free in summerby 2040(U.S National Center for Atmospheric Research, 2006)

    Society can stillminimize the impactson Arctic ice.

    Dr. Marika Holland, National Center for Atmospheric Research

    20002040

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    As the temperature of oceans rise, so will the probability

    of more frequent and stronger hurricanes.

    Warmer waters and more

    hurricanes

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    Increased probability and intensity of

    droughts and heat waves

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    Increase in frequent volcanic

    eruptions due to rise in

    temperatures

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    Forest fire increased due to hot

    winds

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    Climate Change

    Important factor affected as a result of

    global warming

    Climate change happens when there is a

    change in Suns output

    Earths orbit

    Drifting continents Volcanic eruptions

    Greenhouse gases

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    Weather Vs ClimateClimate is what we expect, weather is what we get. Mark Twain

    US National

    WeatherService

    PhotocourtesyofPa

    rkerRittgers/ADN

    readersu

    bmission

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    Wildlife effects

    Effects of global warming on animals is

    one of serious threat to Biodiversity

    Extinction

    Some species migrates from one place to

    other for survival

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    Polar Bear

    Polarbear who depend on sea ice announced

    as an endangered species

    The numbers in the western Hudson bay

    down by 22% in 17 years

    The cubs perished from 61 to 22 per 100

    females

    Increase in cannibalism

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    Birds Threatened

    Birds flying higher, farther away

    Lakes and rivers too low

    Fewer birds seen

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    Global warming and Human Health

    Global warming will affect human health in a

    number of different ways

    The spread of infectious diseases will be

    affected Agriculture will be affected

    Extreme weather patterns will be affected

    The amount of smog near the ground will beaffected

    The supply of freshwater available to humans

    will be affected

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    WHAT CAN WE DO?

    Ways to stop/control global warming

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    Energy Conservation

    It is one of the most important task that

    should be considered

    Using alternate sources of energy in daily

    life is better way to conserve energy

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    REUSE

    Paper can be reused for various purposes

    Covers and boxes which comes with products can be

    used for decorative purposesPlastic bags can be used for carrying small things

    U lt t

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    Use alternate energy courses

    Alternate energy sources

    Nuclear

    Wind

    Geothermal

    Hydroelectric

    Solar

    Fusion

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    Advantages of 3Rs

    Reduction of

    wastagesLess pollution

    Efficient

    use of

    resources

    Increase

    in energy

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