Anthropocene: Ivory Burn On April 31, 2016, the largest ivory burn in history took place in Nairobi National Park. Eleven pyres comprised of 105 tonnes of confiscated elephant tusks and 1.35 tonnes of rhinoceros horn were set on fire as a clarion call to halt all trade in ivory. The street value of the pyres was estimated between 105 and 150 million dollars — representing betwe...