8/4/2019 Global Warming-A Gretest Environmental Threat
1/21
Global Warming
The Greatest Environmental
Threat !!!
Global Warming The Greatest EnvironmentalThreat !!!
8/4/2019 Global Warming-A Gretest Environmental Threat
2/21
Outline
What is Global warming
The Causes
The Effects
How Can We Stop Global
Warming?
Need For Controlling GlobalWarming
Conclusion
8/4/2019 Global Warming-A Gretest Environmental Threat
3/21
What is global warming?
Rise in earths
temperature
Caused by too much
carbon dioxide
Results from changes in
the natural environment
8/4/2019 Global Warming-A Gretest Environmental Threat
4/21
What causes global warming?-The Green house Effect
Green House Gases-Gases composed of molecules that absorb and
radiate infrared radiation from the sun.
Eg
. Carbon dioxide(burning fossil fuels, deforestation)
CFCs(Chlorofluorocarbons)-(refrigerants, aerosols,propellants, solvents)
Methane-(animal waste,biomass burning ,fossil fuels,livestock,rice paddles,sewage)
Nitrous Oxide-(biomass burning, deforestation,burning fossilfuels,microbial activity on fertilizers)
8/4/2019 Global Warming-A Gretest Environmental Threat
5/21
What causes global warming?-
The Green house Effect
Greenhouse gases(e.g. carbon dioxide, methane, nitrous oxide, CFCs)
trap heat in the earths atmosphere.
Solar energy passesthrough
Radiantheat is trapped
Greenhouse gases inatmosphere
Greenhousegases in
atmosphereSome radiationsescape theatmosphere
8/4/2019 Global Warming-A Gretest Environmental Threat
6/21
The Suns energy
passes through the
cars windshield.
This energy (heat)
is trapped inside
the car and cannot
pass back through
the windshield,
causing the inside
of the car to warm
up.
Example of the
Greenhouse Effect
8/4/2019 Global Warming-A Gretest Environmental Threat
7/21
CO2: The Most Significant
Greenhouse Pollutant
Burning carbon-containing fossilfuels produces carbon dioxide
8/4/2019 Global Warming-A Gretest Environmental Threat
8/21
Effects of Global Warming
Increased Occurrence OfTsunamis
Intense Cold Waves
Increased Occurrence OfVolcanic Activity
8/4/2019 Global Warming-A Gretest Environmental Threat
9/21
Effects of Global Warming
Increased Outbreaks OfDeadly Diseases
Deaths by Smog
Loss Of Bio diversity AndAnimal Extinction
8/4/2019 Global Warming-A Gretest Environmental Threat
10/21
Effects of Global Warming
Diminished Food AndWater Supplies
Desertification
Death Of Ocean Life
8/4/2019 Global Warming-A Gretest Environmental Threat
11/21
How Can We Stop Global
Warming?
Conserve EnergyConsume Energy EfficientlyUse Renewable EnergyStrict Legislative Acts
8/4/2019 Global Warming-A Gretest Environmental Threat
12/21
Steps To Conserve EnergyWalk, bike, ride public transit,
or carpool
Make sure your tires are fully inflated and
your car tuned up
Lower your water heater thermostat
Don't preheat your oven
Unplug appliances not in use
Turn off lights when leaving a room
Use recycled paper
Reuse or recycle as much as you can
8/4/2019 Global Warming-A Gretest Environmental Threat
13/21
Steps To Consume Energy
Efficiently
Replace incandescent lightswith fluorescents
Replace your appliances withenergy star ratedappliances
Buy a hybrid car/high mileage
cars
Reduce your homes heatand energy loses
8/4/2019 Global Warming-A Gretest Environmental Threat
14/21
Renewable Sources Of Energy
Wind
Solar
Hydro electric
Geothermal
Biofuels
8/4/2019 Global Warming-A Gretest Environmental Threat
15/21
Strict Legislative Acts
Strict Laws need to be enacted toreduce pollution by the individualsor the industrial houses.Pollution due to vehicular trafficneeds to be stictly controlledViolators should be firmly dealtwith
8/4/2019 Global Warming-A Gretest Environmental Threat
16/21
The Japan Tsunami and
Earthquake-2011
Stop Global Warming!!
Avoid Natural Disasters!!
8/4/2019 Global Warming-A Gretest Environmental Threat
17/21
If nothing is done to slow
greenhouse gas
emissions. . .
CO2 concentrationswill likely be more than
700 ppm by 2100
Global averagetemperatures projected
to increase between
2.5 - 10.4F
2100
Source: OSTP
Why Global Warming Needs To
Be Controlled?
8/4/2019 Global Warming-A Gretest Environmental Threat
18/21
What can happen if we dont
produce less CO2?
Temperatures will get warmer.
Glaciers will melt, ice sheets inArtic will melt (Polar Bears hunt
on ice sheets)Sea levels will rise.
More droughts in dry areas and
more rain and snow in wet areas.More violent weather around the
world.
8/4/2019 Global Warming-A Gretest Environmental Threat
19/21
Conclusion
Global Warming Needs to be
controlled at the earliest to
avoid Natural Calamities.Sincere Efforts are required at
the earliest to make this earth
more safe and healthy placeto live in !!!
8/4/2019 Global Warming-A Gretest Environmental Threat
20/21
References
www.environmentalgraffiti.com/...effects...global-warming/27
photosoftsunamiinjapan.blogspot.com/201
www.nmsea.org/.../Global_Warming/fossil_fuels_and_global_warming.htm
www.scostep.ucar.edu/comics/books/glob
warm_e.pdf www.globalwarming.org.in/
8/4/2019 Global Warming-A Gretest Environmental Threat
21/21