Best Presentation on Global Warming for Students.....

2. What Is Global Warming?
Global warming is the warming of the
earth through carbon dioxide (CO2)
being pumped into the atmosphere
from tailpipes and smokestacks. Then
the gases trap heat like the glass in a
greenhouse. This is where the term
the “greenhouse effect” came from.
Or we can say that Global Warming
is the theory that we as humans are
increasing greenhouse gases (the
thick layer of gases that catches the
sun’s rays and heats the earth)
through industrialization causing
more gases and increasing the
amount of sunlight that gets caught
and heats the Earth. Carbon dioxide
is the most common gas that causes
global warming.

3. What’s Happening
Scientists say that the barrier
insulating the continental ice caps
is melting. The scientists viewpoint
is that global warming and
pollution from CO2 emissions are
adding to greenhouse gases so
significantly that the Earth is
warming up and will continue to
warm.
“The impacts of warming
temperatures in Antarctica are
likely to occur first in the northern
sections of the continent, where
summer temperatures approach the
melting point of water, 32 degrees
F (0 degrees C).”

4. What’s Happening
As the ice melts, big chunks of
glaciers will break off and become
like ice cubes in a big glass of water.
The ice chunks, known as icebergs,
create mass in the ocean. The
icebergs displace the water causing
the ocean level to rise. Some of the
shoreline in many places like Florida
(where the land is at a low altitude)
will go under water. This melting
could increase the oceans height by
up to 2 feet in only one century!
This would mean many heavily
populated costal cities would flood
causing millions maybe billions of
dollars and damage and the potential
loss of life in these cities.

5. What Will Happen
 “Rising global temperatures are
expected to raise sea level, and change
precipitation and other local climate conditions.
Changing regional climate could alter forests,
crop yields, and water supplies. It could also
affect human health, animals, and many types
of ecosystems. Deserts may expand into
existing rangelands, and features of some of
our national parks may be permanently
altered.” Global surface temperature increased
0.74 0.18 C during the last century.
 As global temperatures increase, the climate
changes. Deaths from global warming will
double in just 25 years, to 300,000 people a
year.
 Global sea levels could rise by more than 20
feet with the loss of shelf ice in Greenland and
Antarctica, devastating costal areas worldwide.
 Heat waves will be more frequent and intense.
 Droughts and wildfires will occur more often.
 The Arctic Ocean could be ice free by 2050.
 More than a million species could be driven to
extinction by 2050.

6. Where Has It Been Happening
The yellow represents warming, melting glaciers, This is where temperatures have risen in the world .
Flooding & rising of sea level. The red represents the
spread of disease, earlier springs, plant and animal shifts
and population changes, coral reef bleaching, downpours,
heavy snowfalls, and flooding, droughts and fires.

7. How Long Has It Been Going
On
The reason the temperature has risen
so much in the past 150 years is
because of how much more we have
used fossil fuels, which gives off
carbon dioxide. “According to NOAA,
the global warming rate in the last 25
years has risen to 3.6 degrees F per
century, which tends to confirm the
predictions of temperature increases
made by international panels of
climate scientists (IPCC).”

8. Explanation of the causes of
global warming
 Greenhouse gases
 Pollution

9. Green House Effect
 The Earth receives energy
from the Sun in the
form UV, visible, and near
IR radiation, most of which
passes through
the atmosphere without being
absorbed. Of the total amount
of energy available at the top
of the atmosphere (TOA),
about 50% is absorbed at the
Earth's surface. Due to this
Temperature of the Earth is
Increased. This effect is
known as Greenhouse Effect.
Greenhouse gases are
transparent to shortwave but
absorb longwave radiation.
Greenhouse Gases Are -
1)Carbon Dioxide (CO2)
2)Methane (CH4)
3)Nitrous oxide (N2O)

10. Pollution
Two Main reasons of pollution causing global
warming.
1)Carbon dioxide emissions from fossil fuel
burning power plants :-
Our ever increasing addiction to electricity from coal burning
power plants releases enormous amounts of carbon dioxide
into the atmosphere. 40% of CO2 emissions come from
electricity production, and burning coal accounts for 93% of
emissions from the electric utility industry every day.
2)Carbon dioxide emissions from burning gasoline
for transportation:-
Our modern car culture and appetite for globally sourced
goods is responsible for about 33% of emissions in the India.
With our population growing at an alarming rate, the demand
for more cars and consumer goods means that we are
increasing the use of fossil fuels for transportation and
manufacturing. Our consumption is outpacing our
discoveries of ways to mitigate the effects, with no end in
sight to our massive consumer culture.

11. How To Control Global Warming
?
We need to control global warming to reduce the future risk.
Global warming is the increase in the average temperature of
the Earth’s near-surface air and oceans in recent decades and
its projected continuation. Global warming is a very serious
issue. The future would be very terrible if we don’t take any
action to reduce it right away.
 Use Public Transport.
 Use Renewable Energy Like Wind Power.
 Burn Methane.
 Use Smart Cooler, Heater & Air Conditioner.
Tune up and maintain vehicles properly.
 Clean the air in your house.
 Reduce electricity usage to the maximum.
 Prefer recycling.
& Go Green...