Biodiversity is increasingly recognised as one of the most strategic resources for the stability of ecosystems, economies and public health systems worldwide. Yet global biodiversity loss continues to accelerate at an alarming pace. According to the United Nations, more than one million animal and plant species are currently threatened with extinction, while the International Union for Conservation of Nature estimates that over 48,600 species are already at risk. Against this backdrop, the International Day for Biological Diversity 2026 returns on 22 May under the theme “Acting locally for global impact”, calling on institutions, businesses and citizens to strengthen local environmental action.

Established by the United Nations, World Biodiversity Day commemorates the adoption of the Convention on Biological Diversity, officially approved in Nairobi on 22 May 1992 during preparations for the Rio Earth Summit. Ratified today by 196 countries, the Convention pursues three core objectives: conserving biological diversity, promoting the sustainable use of natural resources and ensuring the fair sharing of benefits derived from genetic resources.

The Kunming-Montreal framework and the global 30x30 target

The 2026 edition carries particular significance because it marks the midpoint between the adoption of the Kunming–Montreal Global Biodiversity Framework in December 2022 and the 2030 deadline for achieving its targets. Considered the world’s emergency roadmap for nature protection, the agreement was adopted during COP15 under the Convention on Biological Diversity and established four long-term goals for 2050 alongside 23 operational targets to be reached within this decade.

At the centre of the framework is the so-called “30x30” objective. By 2030, signatory countries committed to protecting at least 30% of terrestrial, inland water, marine and coastal ecosystems, while also restoring 30% of degraded natural areas. The agreement additionally focuses on reducing species extinction rates, promoting sustainable resource management, strengthening equitable access to genetic resources and mobilising financial support for biodiversity policies.

The financial dimension remains one of the most critical aspects of implementation. According to UN estimates, the annual biodiversity funding gap currently exceeds 700 billion dollars globally. To close this deficit, the Kunming–Montreal framework aims to mobilise at least 200 billion dollars per year by 2030 through public and private investments.

Biodiversity, climate and human health increasingly interconnected

Scientists and international organisations continue to warn that biodiversity loss is no longer solely an environmental issue. Ecosystem degradation directly affects climate resilience, food security and public health. More than 80% of the global human diet depends on plants, while around 3 billion people rely on fish as a primary protein source. In developing countries, nearly 80% of rural populations still depend on plant-based medicines for healthcare.

At the same time, deforestation, habitat fragmentation and climate change are intensifying the spread of zoonotic diseases transmitted from animals to humans. The World Health Organization has repeatedly stressed that healthy ecosystems act as protective buffers against disease outbreaks. Oceans, rainforests and peatlands also play a crucial role in carbon storage, making biodiversity conservation increasingly central to climate mitigation strategies.

The 2026 campaign therefore promotes what the Convention on Biological Diversity defines as a “whole-of-society approach”. Beyond national governments, the initiative seeks to involve Indigenous communities, cities, local authorities, businesses, financial institutions, youth organisations and civil society groups in biodiversity governance.

With only four years remaining before the 2030 targets, the International Day for Biological Diversity has become both a symbolic and operational milestone. The challenge now is transforming local initiatives into measurable global progress capable of slowing ecosystem collapse and strengthening long-term environmental resilience.

Cover: photo by Envato