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JIS College Of Engineering
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GLOBAL WARMING & GREENHOUSE EFFECT
Anirban Shaw, Sourabh Das, Suman KaurDepartment Of Computer Application
JIS College Of Engineering
Global Warming
An average increase in the temperature of the atmosphere near the Earth’s surface and in the troposphere1, which can contribute to changes in global climate patterns
Causes Of Global Warming
1. Impacts Of Burning of fossil fuels
2. Impacts Of Greenhouse Gases Emission
1. Impacts Of Burning of fossil fuels :-
Power Plants
Transportation
Industrial processes
2. Impacts Of Greenhouse Gases Emission :-
Agriculture
Forestry
Other Land Uses
Waste management
Example : Using natural gas to cook CH4 + 2O2 CO2 + 2H2O
Besides carbon dioxide, other gases such as
methane, chlorofluorocarbons,
nitrogen oxides and ozone also contribute to the greenhouse effect.
HAVE YOU
HEARD THE
WORLD IS
GETTING
HOTTER?
YES,THAT’S
BAD NEWS
ISN’T IT?
The earth is heating up too fast and it’s all
people’s fault because of
pollution…..
So how does this affect us.
The ice sheets
are melting
very fast.
Rising at an average rate of
1 - 2 mm/year over the past 100
years
Without ice,where will my poor friends(penguins and polar bear) will go.
As the ice melts , the oceans will fill up and overflow on the land.
Increase in greenhouse gases
• Concentration of greenhouse gases in the atmosphere is highly increasing by human activities
→ Leads to the increasing seriousness of global
warming
Global Surface Temperatures
• Increased about 0.6°C/century since the late19th century
• Increased to 2°C/century over the past 25 years
NOT Globally Uniform Warming
• Warming parts: -- North America -- Eurasia • Cooling parts: -- parts of the southeastern U.S.
Measures on controlling the problem
• Government1. Set some laws to limit the amount of pollutants
produced by factories2. Develop the skills of using renewable fuels, e.g.
solar energy, wind energy3. Encourage the factories to replace fossil fuels by
renewable fuels, which would not cause environmental pollution
4. Carry out energy saving scheme → reduce the pollution produced by burning fossil fuels
5. Build more plants → reduce the pollutants e.g. CO2
• Citizens1. reduce the use of plastic bags → as burning
plastic emit CH42. recycle the resources, e.g. plastic 3. reduce the use of sprays → as CFCs would be
emitted out4. reduce the use of air-conditioner, which will
emit CFCs5. use public transportation instead of private
cars → reduce the pollutants emitted by cars
Measures on controlling the problem
Please don’t eat up your mother earth like a devil.
YOU HAVE CHOICE!
CHOOSE WISELY
THANK YOU!