World Questions looks at the environment, with a special programme from Australia. The BBC’s Shaimaa Khalil looks ahead to the COP climate change conference in the UK with a panel of guests to discuss the world’s most pressing issues from the perspective of the Southern Hemisphere. The panel includes: Malcolm Turnbull - former Australian Prime Minister Juliet Kabera - Director General of the Rwanda Environment Management Authority (REMA) Mbong Akiy - spokeswoman for Greenpeace Africa Natalia Greene - environmental campaigner in Ecuador Producers: Helen Towner and Steven Williams Engineers: Darren Brown, Ian Mitchell and Duncan Hannant BBC World Questions is a series of international events created in partnership with the British Council. (Photo: A family wading through sea water that flooded their village In Kiribati Credit: Jonas Gratzer/LightRocket/Getty Images)