Felix Leung is a postdoctoral researcher and a scientist at the Chinese University of Hong Kong. His research focuses on the impact of anthropogenic activities such as air pollution and urbanisation on ecosystems and the environment. He is well-versed in ecology, environmental biology, conservation, geography, and climate change science. An eco-tourism enthusiast, Felix has traveled to seven continents visiting more than 50 countries and regions. He can be contacted at felix[at]earth.org.