During the past week the UNESCO World Heritage Committee had gathered in Qatar to discuss and take decisions on World Heritage sites. The Advisory Body on nature, were there to give advice to the Committee, which consisted of 21 States Parties. Around 20 specialists of World Heritage conservation make up the IUCN delegation this year. They were from diverse backgrounds and different regions of the world – and IUCN gave us the opportunity to pick their brains. IUCN asked to send in our burning World Heritage questions on Twitter.