To date, the conservation of global biodiversity has relied on a patchwork of international goals and national- and regional-level plans. Hampered by poor planning, competing interests, and an incomplete view of large-scale ecosystem function, these efforts are failing. Effective biodiversity conservation will instead require a broad-based approach that relies on the empirical evaluation of ecosystem dynamics and conservation actions.             Writing in BioScience, William Arlidge, E. J. Milner-Gulland, and colleagues present a unified framework to address these challenges: global mitigation hierarchies. These mitigation hierarchies encompass a four-step process of harm avoidance, minimization, remediation, and offsetting. The authors argue that by implementing such processes, global conservation priorities can be established in a way that bridges gaps in current regulatory regimes and enables more effective conservation. In this episode of BioScience Talks, Arlidge and Milner-Gulland join us to explain the approach in more detail and describe the possible paths to implementation. Learn more: Read the article (free download). Subscribe on iTunes. Subscribe on Stitcher. Catch up with us on Twitter.