Global warming

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GLOBAL WARMING

23/01/2013 2

CONTENTI. Introduction: What is Global Warming?

II. Global Warming: 1.What are the causes of Global Warming?

2.What are the effects of Global Warming?

3.What shall we do?

III. Conclusion and References:

IV. Thanks:

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WHAT IS GLOBAL WARMING?

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GLOBAL WARMING IS VERY DANGEROUS!

WHAT IS GLOBAL WARMING?Global warming:

refers to the rising average temperature of earth’s atmosphere.

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1What are the causes of global warming?

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Causes of Global Warming

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There are two main causes:

.Human made

causes

.Natural causes

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.What are Human doing?Human are doing:

Greenhouse gases

Deforestation

What is GREENHOISE GAS?Greenhouse gases: are gases that trap or

absorb heat in the earth’s atmosphere. Those gases have: Methane (CH4)

Nitrous Oxide (N2O)

Carbon Dioxide (CO2)

Chlorofluorocarbons (CFC)

http.//en.wikipedia.org/wiki/Greenhouse Gas

http.//en.wikipedia.org/wiki/Greenhouse Gas

Those gases are Methane (CH4)

Nitrous Oxide (N2O)

Carbon Dioxide (CO2)

Chlorofluorocarbons (CFC)

http.//en.wikipedia.org/wiki/Greenhouse Gas

Where Greenhouse gases come from ?CH4,C

O2

CFC

CO2, CH4

Where greenhouse gases come from?

CO2, CH4

CFCCFC

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How Greenhouse Gases Effect Global warming?

Indian cow eating rubbish

But, We are increasing Greenhouse gases

Leading Education, Inspiring Development

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Deforestation

CO2CO2CO2CO2

CO2

CO2 CO2

CO2

CO2

absorb

absorb

absorb

absorb

04/08/2023 - World Wildlife Fund Report 2005Leading Education, Inspiring Development

If we cut trees, who will absorb CO2?

CO2

CO2 CO2CO2

CO2

CO2CO2 CO2

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• JELLYFISH

CNN.com/t- CNN.com/technology November 16, 2007

. Natural causes

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Global warming happens by nature such as:

CO2, CH4, CFC,N2O

CO2,CFC,N2O, CH4

Volcano Forest fire

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“ Global Warming is the most

serious threat facing the planet.”

TONY Blair,(1997-2007)

• JELL• YFISH

• “”

CNN.com/t- CNN.com/technology November 16, 2007

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2. EFFECT OF GLOBAL WARMINGThere are 4 main effects:

. Increase temperature

. Melting the land ice

. Rise of sea levels

. Disaster

04/08/2023 United States Environmental Protection Agency 18

. Increase Temperature

Our earth will increase more 3c to 5c (5.4 to 9 Fahrenheit) by the year 2100.

http.//timeforchange.org/cause-and effect-for global-warming

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. Melting the land iceFor instance, iceberg in the east coast of

Antarctic are melting.

http.//en.wikipedia.org/wiki_of_global_warming

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. Rise of sea levelsRise of sea levels will increase at least 25 meters(82

feet) by the year 2100.

• http.//en.wikipedia.org/wiki/Sea-Level

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. Disaster

There will be extremely disasters such as: Floods Droughts Storms

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FLOOD

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Flooding in Cambodia(09.2011) Flooding in Thailand(11.10.2011)

. 10,000 families were evacuated . 352 people were died (Thursday,

. 83,000 houses were flooded 20,10,2011 )

. More than 247 people were died www.cnn.com/2011/20/10/world

. 163,000ha(rice) were underwater asia/flooding/index.htm/

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DROUGHTDrought in Somali

11.5 million people do not have food. (The World Health Organization) http.//en.wikipedia.org/wiki/2011_East_Africa_drought www.bbc.co.uk/news/world-africa-14211905

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Please, Help Our Planet!

If you don’t care, who will care?

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3.What Shall we do ?

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Law Enforcement (increasing tax, restrict some kind of manufacturing…)

Forestation

Reduce, Reuse, Recycle

Take public transportation (bus)

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III. Conclusion

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Referenceshttp.//en.wikipedia.org/wiki/Greenhouse Gas

http.//en.wikipedia.org/wiki_of_global_warming

http.//environment.nationalgeographic.com/environment/global-warming/gw-cause/effect

www.bbc.co.uk/newa/world-africa-14211905

www.cnn.com/2011/20/10/world

Asia/flooding/index.htm

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THANK YOUVERY MUCH FOR

YOUR ATTENTION!