May 22 marks the International Day for Biological Diversity. The year 2020 is a "super year" for biological diversity and climate emergencies. Our world is facing an unprecedented environmental crisis with a large number of species on the brink of extinction and global temperatures continuing to rise. What is biodiversity? Why should we care? What would happen if it disappears? Watch this video to learn more.

(Cover image via VCG, IDB logo via IDB official website, voiceover by Zhang Hao.)

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