The Okavango Delta Basin, which straddles Botswana, Angola and Namibia is the world's largest untransformed river basin and wetland. It is also home to millions of the wild's endangered wildlife, and a critical biodiversity lifeline. However, due to human activities and climate change, the Delta's water levels are decreasing, posing a danger to the ecosystem. The National Geographic Society, to raise awareness of the Delta, produced a documentary about the resource. Steve Mokaya, our environmental journalist, attended the documentary's premiere in Gaborone, Botswana, and talked to the key people in the film about the significance of the Delta; what is at stake; and what ought to be done to avert a nature crisis in Africa. Ko Seronga, the music in this podcast, was used with consent by Thato Kavinja, the artist from Botswana. The photo on the thumbnail was supplied by the National Geographic Society. Enjoy the podcast!