Dubai: When Belgium opens its pavilion doors at Expo 2020 in October it will showcase its artistic and technical expertise, and offer up a snapshot of the kind of carbon-neutral, smart and green country its working towards being. Just look at the eco-design of its pavilion. Burj Khalifa contractor builds the ‘Green Arch’ The all-encompassing pavilion structure exhibits Belgian technological, industrial and scientific knowledge, and it does this through the concept of biomimicry, where problem-solving designs are modelled on nature. Designed by Vincent Callebaut Architectures and Assar Architects, the zero-waste building sports a vertical garden of 10,000 plants that are capable of absorbing up to 35 tonnes of carbon dioxide and converting it into oxygen.