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Card 6

Front

La desertización

Back

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Card 7

Front

La destrucción de la capa de ozono

Back

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Card 8

Front

El agujero de ozono

Back

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Card 9

Front

Despertar a la opinión pública

Back

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Card 10

Front

Luchar por la supervivencia de las especies

Back

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Card 11

Front

Nos quedan veinte años para evitar una catástrofe climática

Back

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Card 12

Front

Energy resources.

Back

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Card 13

Front

The saving of energy

Back

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Card 14

Front

To exhaust/squander

Back

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Card 15

Front

To switch the heating on/off.

Back

Preview of the front of card 15
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