'Crisis ecoregions' diaporamas de présentation

Chapter 6: Habitat degradation and loss

Chapter 6: Habitat degradation and loss. Biggest threat to biodiversity; over 80% of land on Earth is affected by humans to some extent; at least 60% is used unsustainably and/or is damaged. Aquatic systems too: e.g., over 1/5 of coral reefs gone, another 1/5 degraded.

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