The full scope of China's Belt and Road Initiative is opaque because the country has never published a list of its projects.

The World Bank has developed a database of road and rail construction along economic corridors that China is investing in between East Asia and Europe. Many of these projects overlap with internatioally recongized biodiversity hotspots.

Sources: World bank: go.nature.com/2ddj42p; Road and rail lengths: go.nature.com/2xspngh; Biodiversity: go.nature.com/2vbnbzq

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