The Duke of Cambridge will speak to listeners around the world from the top of London’s iconic Shard in a bid to put an end to the illegal wildlife trade.
Prince William’s keynote address at the Time for Change event - organised by conservation charity Tusk - will be live streamed on Facebook and satellite linked to events in Tokyo and Johannesburg.
The illegal trading of animals, including the sale of ivory and rhino tusks, is now recognised as the fourth most valuable transnational crime, after drugs, arms and human trafficking.
It is estimated to be worth up to $20 billion each year.
The results of the Great Elephant Census, published earlier this month, revealed the population of African savannah elephants dropped 30 per cent in the space of just seven years to 2014.
It is hoped the event will draw attention to the severity of IWT across the globe on the eve of the crucial Convention for International Trade in Endangered Species in South Africa.
Watch the live stream of the Duke's speech below:
