global warming final presentation 01
TRANSCRIPT
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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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