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Desertificatio n What causes it?

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Page 1: Desertification and water degradation

Desertification

What causes it?

Page 2: Desertification and water degradation

12 million hectares of land annually become desert

Page 3: Desertification and water degradation

EFFECTS ON AGRICULTURE

• China + Africa most affected

• 20 million tons of potential grain lost annually

• Price of food rises

Page 4: Desertification and water degradation

WATER DEGRADATION

Page 5: Desertification and water degradation
Page 6: Desertification and water degradation

IMPACT ON AGRICULTURE

• 10% of world’s irrigated lands have become salinated

• Water sources dry up from over use.

• Supply of food goes down

• Global food prices rise

Page 7: Desertification and water degradation

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