Why bartering biodiversity fails

TLDR

Biodiversity trading is promoted to achieve conservation and development goals, yet it has largely facilitated development while perpetuating loss, and political theory predicts that officials will resist safeguards and that trading is especially vulnerable to institutional dynamics that undermine protection. The authors argue that recommendations to improve biodiversity trading overlook and cannot correct the key causes of its failure to protect biodiversity. Effective trading requires simple, measurable, interchangeable commodities, but the currencies, restrictions, and oversight needed to safeguard complex, difficult‑to‑measure, noninterchangeable resources like biodiversity are costly and intractable. The required safeguards compromise trading viability, making no‑net‑loss or net‑gain delivery administratively improbable and technically unrealistic, and the proliferation of offset programs without credible solutions turns them into symbolic policies that obscure loss and erode momentum for action.

Abstract

Abstract Regulatory biodiversity trading (or biodiversity “offsets”) is increasingly promoted as a way to enable both conservation and development while achieving “no net loss” or even “net gain” in biodiversity, but to date has facilitated development while perpetuating biodiversity loss. Ecologists seeking improved biodiversity outcomes are developing better assessment tools and recommending more rigorous restrictions and enforcement. We explain why such recommendations overlook and cannot correct key causes of failure to protect biodiversity. Viable trading requires simple, measurable, and interchangeable commodities, but the currencies, restrictions, and oversight needed to protect complex, difficult‐to‐measure, and noninterchangeable resources like biodiversity are costly and intractable. These safeguards compromise trading viability and benefit neither traders nor regulatory officials. Political theory predicts that (1) biodiversity protection interests will fail to counter motivations for officials to resist and relax safeguards to facilitate exchanges and resource development at cost to biodiversity, and (2) trading is more vulnerable than pure administrative mechanisms to institutional dynamics that undermine environmental protection. Delivery of no net loss or net gain through biodiversity trading is thus administratively improbable and technically unrealistic. Their proliferation without credible solutions suggests biodiversity offset programs are successful “symbolic policies,” potentially obscuring biodiversity loss and dissipating impetus for action.