Global

Issues

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Global

Warming

The Fact:

4000 islands in Indonesia will drown in the upcoming years

due to rising sea levels caused by Global Warming.

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What is Global Warming?

Global Warming refers to the increasing temperature of

earth's surface due to the excess heat trapped into our

atmosphere. This takes place due to enhanced green house

effect.

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What is Greenhouse effect?

The phenomenon whereby the earth's atmosphere traps

solar radiation, caused by the presence in the atmosphere

of gases such as carbon dioxide and methane that allow

incoming sunlight to pass through but absorb heat radiated

back from the earth's surface. This keeps the Earth warm

and a nice place to live in, keeping us all happy.

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“Enhanced” greenhouse effect

These days, human activities produce too much greenhouse gases

that makes the earth’s atmosphere thicker, making it impossible for

the Sun rays to reflect back into the atmosphere. Hence, the Sun rays

get stuck into the earth's atmosphere, making it too hot to live in. This

is called Enhanced Greenhouse Effect and is what's

causing Global Warming.

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Greenhouse Gases

- Carbon-dioxide

- Methane

- Nitrous Oxide

- Chlorofluorocarbons

- Surface Ozone

Carbon Dioxide- Produced by burning fossil fuels such as

gas, petrol, aviation petrol, diesel and oil #MesueseAurela

Methane

- Produced when you burp.

- Twenty –one times more effective

than carbon dioxide in blocking the

escape of radiant heat.

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Nitrous Oxide- Produced from burning forests, car

exhaust, jet fuel and artificial fertilizers.

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Chlorofluorocarbons (CFCs)

- Invented in 1920s.

- Were found in aerosol spray cans and as coolant gases on refrigerators.

- Non-poisonous.

- Odourless.

- Were once called ‘wonder chemicals’.

- Stable and cheap to produce.

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Surface Ozone- Generated as a part of photochemical smog.

- Produced by the action of sunlight on motor vehicle and industrial pollution.

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Australian greenhouse gas

production

Carbon dioxide

Methane

Nitrous Oxide

Other

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Evidence of global warming

#1- Glaciers have been melting.

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Evidence of global warming

#2- Icebergs are breaking off.

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Evidence of global warming

#3- Ice sheet in Greenland is getting thinner.

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Evidence of global warming

#4- Coral reefs in the Caribbean are now permanently bleached.

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Evidence of global warming

#5- Alpine plant species has fallen.

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Evidence of global warming

#6- Snowgums in Australia have shifted 40 meters up the mountain.

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El Niño effect

El Niño effect occurs in which trade winds weaken or

reverse, allowing warmer water to move towards the

west coast of South America around Christmas time.

The result is that Australia experiences drought, and

South America experiences increased rainfall.

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#1- Think Green

#2- Do Green

#3- Share Green

Save The Earth

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