powerpoint presentation

2. WHAT IS GLOBAL WARMING?
• Global warming is a steady process of
continuous rise in the level of Earth
temperature. Global warming has become one
of the biggest problems faced by the world
now. It is believed that increasing level of
carbon dioxide gas and other greenhouse
gases on the earth are the main reasons of
heating the atmosphere of earth.

3. EFFECTS AND CAUSES

4. Burning of Fossil Fuels
Each time a fossil fuel burn, carbon dioxide levels in the atmosphere increase. As we know
carbon dioxide absorbs infra-red energy emitted from the earth’s surface, preventing it from
returning to space. Auto mobiles, Carbon emissions from the burning of gasoline to power cars,
trucks, and other methods of transportation. Electricity generation requires, coal is the largest
producer of carbon dioxide emissions, Therefore countries across the world want to switch to
nuclear power plants.

5. Rise in sea levels
Increase in sea levels is the result of melting of two massive ice
sheets in Antarctica and Greenland as researched by scientists.
However, many nations around the world will experience the
effects of rising sea levels, which could displace millions of
people.

6. Deforestation
The use of forests for fuel (both wood, for charcoal and other necessary lifestyle products) is
one cause of deforestation. In order satiate ourselves, for wood and other products, mainly
habitat and to build farms we are chopping forests which is not a good sign and has also leads to
decrease in rainfalls. Forests are very human friendly, they clean the air as they act as natural
filters remove and store carbon dioxide from the atmosphere, and this deforestation releases
large amounts of carbon, as well as reducing the amount of carbon gas capture on the earth.

7. Increase in co2 concentration
The CO2 concentration in the atmosphere by about thirty percent,
due to Human beings have increased, the increase is proportional
to increases in fossil fuel combustion ,for electricity generation,
transportation, and heating, and also the manufacture of cement ,
(human caused) emissions.

8. Ozone Depletion
Ozone layer depletion is one of the most serious problems faced by our planet
earth. It is also one of the prime reasons which are leading to global warming.
Ozone is a colorless gas which is found in the stratosphere of our upper
atmosphere. The layer of ozone gas is what which protects us from the harmful
ultraviolet radiations of the sun. The ozone layer absorbs these harmful
radiations and thus prevents these rays from entering the earth’s atmosphere.
Ultraviolet radiations are high energy electromagnetic waves emitted by the sun
which if enters the earth’s atmosphere can lead to various environmental issues
including global warming,

9. SOLUTIONS

10. 1. Use Fluorescent Light Bulbs: You should immediately change incandescent light
bulbs and use fluorescent light bulbs, because these fluorescent bulbs consume only
25 % energy comparable incandescent bulbs.
2. Switch Off Electric Appliances: When electric appliances are not in your use, then
plug them off, because they use some energy even in off position.
3. Change Your Monitor with LCD: Try to get LCD instead of a monitor, because LCD
takes about 56 percent energy than your monitor. Always keep your computer screen
status off, when you are not working.
4. Don’t Leave Fridge’s door open for a Long Time: You take or put things in your
Fridge quickly, because if you keep open your fridge door for a minute, then its motor
will remain operative for more than a half hour.
5. Uses of Solar Energy: You should convert your heating system to the solar energy,
in this way you can save electricity, money and your environment from global
warming.
6. Use Electric or Hybrid Car: You consider purchasing a hybrid or electric car, in place
of gasoline car. Gasoline car covers 20 to 30 miles per gallon, whereas hybrid or
eclectic gives you 130 to 140 mg.
7. Plant Trees At Home: If you have placed at the front or back side of your home,
trees shading, can make your home cold during summer. Since trees absorb carbon
dioxide, so reduce the carbon dioxide in your surroundings.
8. Save Clean Water : You should not waste clean water, because clean water has
become less, experts see the water crisis in the future. We need more energy for the
processing of clean water.

11. 9. Avoid Lighting at Day Time : The sun provides you light dawn to dusk; if you design
your home with good planning you can save electricity cost.
10. Make High Roofs: When you build your home, construct it with high ceiling,
because it reduces the heat. Ceramic or soil material made roofs to comfort the
temperature of the room.
11. Get Your House Insulated: Your house must be properly insulated, use insulation
in the lower floor, ceiling, over crawl spaces and walls.
12. Reduce Trash At Home: You should reduce trash that gets produced in your house
. You can achieve this goal by using recycled products and avoiding unnecessary
garbage items.
13. Reduce the Usage of Hot Water: You should try better to reduce the usage of hot
water, install low-flow shower-heads in your bathroom; you will avoid contributing
350 pounds carbon dioxide yearly.
14. Grow your Own Foods: Fresh vegetable is better than you buy from the grocery
store. They will save you expense on gas & time.

12. POSTERS ON GLOBAL
WARMING