International Day for Biological Diversity 2026

The International Day for Biological Diversity is observed each year on May 22. Proclaimed by the United Nations to raise awareness of the value of life on Earth, this day serves as a global reminder of the need to safeguard biodiversity and protect the ecosystems that support human well-being. The observance is coordinated by the Convention on Biological Diversity, the international legal instrument for the conservation and sustainable use of biological resources.

The Significance of Biodiversity

Biological diversity encompasses the full variety of life on the planet—plants, animals, microorganisms, and the ecosystems they inhabit. It includes differences within species, between species, and among ecosystems. These natural systems are the basis for clean air, fresh water, medicine, food, fuel, clothing, and much more. As our societies grow and develop, preserving this web of life is essential to long-term survival.

Key ways biodiversity supports life include:

• Food and Nutrition: Plants provide over 80 percent of the human diet, while fish supply vital protein to nearly 3 billion people.

• Health and Medicine: Up to 80 percent of people in rural communities rely on traditional, plant-based remedies.

• Climate Resilience: Diverse ecosystems are better able to adapt to changing environmental conditions and offer protection against extreme events.

• Disease Prevention: Healthy biodiversity reduces the risk of zoonotic diseases that can spread between animals and humans.

History of the International Day for Biological Diversity

The United Nations initially designated December 29 as the International Day for Biological Diversity in 1993, marking the day the Convention on Biological Diversity entered into force. In 2000, the date was shifted to May 22 to commemorate the adoption of the Convention’s text in 1992.

Since then, the day has become a key moment to promote education, policy change, and cooperation on biodiversity. It connects people worldwide through campaigns, events, and learning programs that focus on the value of nature and the consequences of biodiversity loss.

International Day for Biological Diversity and the Sustainable Development Goals (SDGs)

Protecting biodiversity is central to achieving the Sustainable Development Goals. Biological resources play a role in nearly every goal—from poverty reduction to health, education, and climate stability. The International Day for Biological Diversity reminds the world that nature and development are deeply linked.

Key connections include:

• Goal 2: Zero Hunger – Biodiversity in crops, livestock, and ecosystems supports stable food systems and long-term nutrition.

• Goal 3: Good Health and Well-being – Many life-saving drugs are derived from natural sources, and balanced ecosystems help prevent the spread of disease.

• Goal 6: Clean Water and Sanitation – Wetlands and forests filter and store freshwater, making them vital for clean water access.

• Goal 13: Climate Action – Forests, oceans, and soil systems absorb carbon dioxide and reduce the impact of climate change.

• Goal 14: Life Below Water – Marine biodiversity is essential to healthy oceans and the communities that rely on them.

• Goal 15: Life on Land – Forests, deserts, and grasslands must be protected to prevent species loss and habitat degradation.

• Goal 17: Partnerships for the Goals – The global biodiversity framework requires cooperation across nations, sectors, and communities.

According to the Convention on Biological Diversity, current biodiversity trends threaten progress toward 80 percent of the assessed targets under these goals. Reversing that trend is a shared responsibility.

Observance of International Day for Biological Diversity 2026

The 2026 observance continues to build on the global plan known as the Kunming-Montreal Global Biodiversity Framework, adopted in 2022. This agreement sets clear targets for restoring ecosystems and managing threats such as invasive species, pollution, and habitat loss by 2030.

Ways the day may be observed include:

• Educational Programs: Schools, universities, and online platforms offer resources and courses on biodiversity conservation and green innovation.

• Community Events: Nature walks, clean-up projects, and biodiversity awareness days highlight local ecosystems.

• Digital Campaigns: Organizations around the world share stories, facts, and resources across platforms using the official biodiversity logo and outreach materials.

• Policy Forums: Governments and experts discuss strategies to implement the biodiversity framework and align it with sustainable development goals.

How You Can Make a Difference

Everyone has a role in protecting biodiversity, whether at home, in the workplace, or through advocacy. Here are some steps to consider:

• Support Sustainable Choices: Buy products that respect ecosystems, avoid overharvesting, and reduce waste.

• Learn and Share: Spread awareness about the links between biodiversity and health, food, water, and climate.

• Protect Local Habitats: Volunteer with local groups or start community projects to restore natural areas and monitor wildlife.

• Reduce Ecological Pressure: Adopt daily habits that limit pollution, minimize single-use plastics, and support clean energy.

As we observe the International Day for Biological Diversity 2026, we are reminded that the future of life on Earth—including our own—depends on the health of the natural world. By respecting and repairing ecosystems, we help secure the resources, resilience, and balance needed for a sustainable future.

International Day for Biological Diversity Themes

Year	Theme	Description
2019	Our Biodiversity, Our Food, Our Health	Highlighted the link between biodiversity and human well-being, focusing on the importance of ecosystems for food security, nutrition, and overall health.
2020	Our Solutions are in Nature	Emphasized the role of nature in addressing global challenges and the importance of working with natural systems to achieve sustainability and resilience.
2021	We're Part of the Solution #ForNature	Built on the 2020 theme, focusing on individual and collective action to solve environmental challenges and support biodiversity conservation.
2022	Building a Shared Future for All Life	Called for continued support for the post-2020 global biodiversity framework and recognized biodiversity as the foundation for a better future.
2023	From Agreement to Action: Build Back Biodiversity	Focused on implementing the Kunming-Montreal Global Biodiversity Framework and taking meaningful action to reverse biodiversity loss.
2024	Be Part of the Plan	Encouraged all stakeholders to help implement the Biodiversity Plan, supporting efforts to halt and reverse biodiversity loss through inclusive and transformative actions.
2025	Harmony with Nature and Sustainable Development	Highlights the connection between biodiversity and the Sustainable Development Goals, urging collective efforts to protect nature as part of a sustainable future.