David leads a team of cartographers, remote sensing engineers, and software developers at TheTreeMap to empower civil society with the tools to monitor deforestation using best satellite and cadastral data, to ensure what happens on the ground is fair, transparent and democratic. "We are building Nusantara atlas to do just that. It is free and for anyone interested to protect remaining forests in Equatorial Asia". David is also a scientist interested in the intersection of spatiotemporal data, environment, climate, economy, and policy. He has published over 60 scientific papers. He worked for the Indonesian program of the Wildlife Conservation Society and was a researcher at the Center for International Forestry Research, where he remains an associate. David holds a PhD from the University of Kent and an MSc from Imperial College London. He is a member of the IUCN Oil Palm Working Group.