2 million tonnes
- soil that has been decontaminated from the Olympic site in London #
3,500 km2
- usual size of China's largest freshwater lake, Poyang #
200 km2
- current size of Lake Poyang, thanks to a drought & the Three Gorges Dam #
15mph
- average speed of a car through Edinburgh at rush hour #
$40,000 per kilo
- current price of rhino horn #
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