PROCESS

CAUSE

EFFECTS

CONSEQUENCES

Acknowledgements

a process by which land becomes increasingly dry until almost no vegetation grows on it - making it a desert

Slash and Burn

Over-logging

Over ploughing and rearing

PRESS ME

1950 60 70 80 90

Population

Grassland

Animals

Rainfall

Year

500 mm

1000 mm

Source From : 　 　　　　　　　　　　　　　　香港大學課程學系母語教學教師支援中心 鳴謝：譚國新先生

FoodPeople

Press the words to explore!

Weather

?Biodiversity

GUESSCan you all the effects of desertification?

Can you guess all the effects of desertification?

Global lessening of food because animals can’t survive

Can you guess all the effects of desertification?

The boiling days and freezing nights make it hard to survive

High temperatures cause intense winds, increasing hurricanes

Can you guess all the effects of desertification?

Can you guess all the effects of desertification?

Worldwide loss of biodiversity

Go to each

spot in order! Have fun!

Press button below

Start here!

Play Maze

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5POVERTYBack

to maze

ConsequenceI

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5

NO SCHOOLING (HAVE TO COLLECT FIREWOOD INSTEAD)

Back to

maze

Consequence II

1

2

3

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5LACK OF WATER AND FOODBack

to maze

Consequence III

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5PEOPLE HAVE NO WHERE TO LIVEBack

to maze

Consequence IV

4

1

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5

Back to

home

“ENVIRONMENTAL REFUGEES” SUFFER UNDER LIVING DIFFICULTIES

Consequence V

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Home

http://office.microsoft.com

http://www.idrc.ca/en/ev-92240-201-1-DO_TOPIC.html

PhotoImpact

http://www.teacherhome.cn/ResHtml/32/3272/1000100066000.html

하망연 (何茫然 ) ( Instrumental )

http://www.cmi.hku.hk/material/dis.ppt