By integrating biodiversity, socioeconomic and protected area datasets, the Ecosystem Assessment and Reporting Tool provides a simple, but powerful interface designed to answer questions such as “Which ecosystems are least protected?†“Of these ecosystems, where and how do we need to improve management?†and “Where are the opportunities to most efficiently reduce threats to these ecosystems?†The EAR tool has been designed around The Nature Conservancy’s (TNC) approach for calculating “Effective Conservation†(Higgins et al, 2007).