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DEGRADATION DE L'ENVIRONNEMENT (7) |
DESERTIFICACION (7) |
DESERTIFICATION (7) |
DETERIORO AMBIENTAL (7) |
ENVIRONMENTAL DEGRADATION (7) |
DROUGHT CONTROL (4) |
LUCHA CONTRA LA SEQUIA (4) |
LUTTE CONTRE LA SECHERESSE (4) |
DIMINUTION DE LA PAUVRETE (2) |
ENVIRONMENTAL PROTECTION (2) |