UN adopts 'historic' high seas treaty

The world's first international treaty to protect the high seas was adopted Monday at the United Nations, creating a landmark environmental accord designed to protect remote ecosystems vital to humanity.

More efforts are needed to protect orchids in karst forests

Karst forests develop in a karst landform, and have complex vegetation types and high biodiversity, and are rich in endemic species. As one of the important and special plant groups in the karst habitat, many orchids have ...

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