GLOBAL WARMINGGLOBAL WARMING

•Extensive use of fossil fuels.•Increase in green house gases released into the atmosphere..deforestation decreases the conversion ofCo2 to o2

Use of fossil fuelsUse of fossil fuels

Increases the carbon composition in the Increases the carbon composition in the atmosphere.atmosphere.

increases the amount of carbonic acid increases the amount of carbonic acid formed in the ocean that increases the formed in the ocean that increases the PhPh level of the sea water.level of the sea water.

Green house gasesGreen house gases

These gases like co2,methane,nitrous oxide These gases like co2,methane,nitrous oxide are responsible for trapping more infrared are responsible for trapping more infrared radiation from the sun thus increasing the radiation from the sun thus increasing the global temperature levels . global temperature levels .

This heat is absorbed by the oceans.This heat is absorbed by the oceans.

WHAT HAPPENS NEXT?WHAT HAPPENS NEXT?

.INCREASE IN OCEAN TEMPERATURE ALTERS THE NORMAL WEATHER PATTERNS OF OUR EARTH .

.MELTING OF ICE CAPS INCREASES THE SEALEVEL.

.THE ICE CAPS IN POLES,GLACIERS ANDOTER AREAS WHERE ICE HAS BEEN BUILDING FOR SEVERAL 1000S OF IS MELTINS.

Melting of ice Melting of ice

It happening right nowIt happening right now

Larsen-b ice shelf.

Seward in alaska

A vanished glacier in greenland.

Mount .ubinas in peru.

Change in weather patterns Change in weather patterns

. Increase in ocean temperature alters the normal The normal weather patterns that our earth had Sustained after the last ice age..causing cyclones of huge intensity.

Killer katrina

Hurricanes in the southernhemishere

S e a le v e l r is in gS e a le v e l r is in g

rising at an average rate of 1 - 2 rising at an average rate of 1 - 2

mm/year over the past 100 years mm/year over the past 100 years

P o p u la t io n P o p u la t io n d is p la c e m e n td is p la c e m e n t

Rising sea levels Rising sea levels

Increase the risk of coastal floodingIncrease the risk of coastal flooding

(Necessitate population displacement) (Necessitate population displacement)

More than halfMore than half of the world's population now lives within of the world's population now lives within 60km of the sea. 60km of the sea.

Most vulnerable regions: Nile delta in Egypt, the Ganges-Most vulnerable regions: Nile delta in Egypt, the Ganges-Brahmaputra delta in Bangladesh, many small islands, Brahmaputra delta in Bangladesh, many small islands, such as the Maldives, the Marshall Islands and Tuvalu. such as the Maldives, the Marshall Islands and Tuvalu.

D ir e c t Te m p e r a t u r e D ir e c t Te m p e r a t u r e E f f e c t sE f f e c t s

Increase in average temperatureIncrease in average temperature

More extreme heat waves during the More extreme heat waves during the summer; Less extreme cold spells during summer; Less extreme cold spells during

the winter the winter

Harmful to those with heart problems, Harmful to those with heart problems, asthma, the elderly, the very young and asthma, the elderly, the very young and

the homelessthe homeless

M e a s u r e s o n M e a s u r e s o n c o n t r o llin g t h e c o n t r o llin g t h e

p r o b le mp r o b le m GovernmentsGovernments

* * set some set some lawslaws to limit the amount of to limit the amount of pollutants produced by factoriespollutants produced by factories

* * develop the develop the skills of using renewable skills of using renewable fuelsfuels, e.g. solar energy, wind energy, e.g. solar energy, wind energy

M e a s u r e s o n M e a s u r e s o n c o n t r o ll in g t h e c o n t r o ll in g t h e

p r o b le mp r o b le m

Citizens Citizens

** reduce the use of plastic bags → as burning plastic reduce the use of plastic bags → as burning plastic emit CH4emit CH4

* * recycle the resources, e.g. plastic recycle the resources, e.g. plastic

** reduce the use of sprays → as CFCs would be emitted reduce the use of sprays → as CFCs would be emitted outout

THE END.