World population hits 8 billion; new robots for high-rise building facades
8:30am-9:15am: world population hits 8 billion\n\n8:30am-9:15am: Paul Yip, Chair Professor (Population Health), Department of Social Work and Social Administration, University of Hong Kong\xa0\n\n8:30am-9:15am: Daisy Tam, Associate Professor, Department of Hu...