Policies and efforts to preserve the variety of life on Earth — species, genetic diversity, and ecosystems — and the habitats that sustain them, in the face of accelerating extinction driven by human activity.
Biodiversity underpins ecosystem services on which human civilization depends: pollination, soil fertility, water purification, climate regulation, and disease control. Its loss is not merely an aesthetic or ethical problem but a direct threat to human welfare and food security.
Biodiversity protection is sometimes invoked to block development projects that would deliver immediate and substantial benefits to impoverished communities. The welfare trade-offs between conservation and development must be assessed explicitly and not presumed to favor protection.
Species that have evolved over millions of years possess intrinsic value independent of their utility to humans. Their extinction is an irreversible loss that no economic compensation can address — an argument that transcends cost-benefit analysis and invokes basic ethical obligations.
Intrinsic value arguments provide no practical guidance for prioritizing conservation resources among thousands of threatened species. Effective conservation requires pragmatic frameworks that acknowledge trade-offs rather than treating all extinctions as equally catastrophic.
Well-governed protected areas with sufficient resources, community engagement, and enforcement are among the most cost-effective biodiversity conservation tools available. The 30x30 goal — protecting 30% of land and ocean by 2030 — provides an achievable target for meaningful impact.
Protected areas disconnected from broader landscape management are biodiversity islands that fail to sustain viable populations of wide-ranging species. Conservation that does not integrate with working landscapes, indigenous land management, and corridors between reserves will be insufficient.
Indigenous communities have managed biodiverse landscapes sustainably for millennia. Formal recognition of indigenous land rights is among the most effective biodiversity conservation strategies available, aligning conservation with justice.
Conservation organizations have historically displaced indigenous communities from lands designated as protected areas, a pattern of 'green colonialism' that violates rights and frequently undermines conservation outcomes by removing the communities best placed to manage local ecosystems.