International Day for Biological Diversity 2026: Why It Matters for Our Lives

Liputan6.com, Jakarta - Every year on May 22, the world pauses to think about something that affects all of us: the variety of life on Earth. From tiny insects in the soil to massive blue whales in the ocean, every living thing plays a role in keeping our planet healthy. The International Day for Biological Diversity is a time to celebrate that variety and to think about how to protect it.

Today, our planet is facing serious problems. Climate change is making temperatures rise, oceans warmer, and weather more extreme. These changes are putting millions of species at risk. Many animals and plants are disappearing faster than ever before in human history. If we do not act now, we could lose parts of nature that we can never get back.

In this article, we will talk about International Day for Biological Diversity and learn why it matters for our lives. We gathered the information from various sources, Thursday (21/5/2026).

The International Day for Biological Diversity is celebrated every year on May 22. This date was chosen because it marks the day in 1992 when the Convention on Biological Diversity was adopted. The United Nations made this an official international day to raise awareness about biodiversity and to remind people why protecting nature is so important.

Biodiversity means the variety of all living things on Earth. This includes animals, plants, fungi, bacteria, and microorganisms. It also includes the variety of ecosystems, such as forests, rivers, coral reefs, and deserts. Each of these places is home to many different species that depend on each other to survive.

According to the United Nations, scientists estimate that there are at least 8 million species on Earth. However, around 1 million of them are now threatened with extinction. Human activities such as deforestation, pollution, and the burning of fossil fuels are the main reasons for this loss. The International Day for Biological Diversity exists to remind us that this is a problem we must solve together.

Biodiversity is not just about nature. It is directly connected to human life and well-being. Without a healthy variety of life on Earth, our food, water, medicine, and economy would all be at risk. Here is why biodiversity matters for every one of us:

- It Provides Our Food: The UN notes that over 80 percent of the human diet comes from plants. Fish provide animal protein to about 3 billion people around the world. If species disappear, our food supply becomes much less stable.

- It Supports Our Health: As reported by the United Nations, about 80 percent of people in rural areas of developing countries use plant-based medicines for basic health care. Many modern medicines also come from nature. Losing biodiversity means losing potential cures for diseases we have not yet found.

- It Protects Us from Disease: Research shows that biodiversity loss can increase the spread of zoonotic diseases, which are illnesses that pass from animals to humans. Healthy ecosystems act as a natural barrier against such outbreaks.

- It Holds Up the Global Economy: According to the Geneva Environment Network, about half of the world's total economy, which is around 44 trillion US dollars, depends on natural resources. Industries like tourism, agriculture, and pharmaceuticals all rely on healthy ecosystems to function.

- It Keeps Ecosystems in Balance: Every species in an ecosystem depends on others, like pieces of a jigsaw puzzle. When one species disappears, it can cause a chain reaction that affects many others. Scientists call this the domino effect. Losing even one keystone species can cut biodiversity in an area by half.

- It Has Cultural and Spiritual Value: For many communities, especially indigenous peoples, nature is deeply connected to identity, culture, and spiritual life. Plants and animals are not just resources; they are part of who people are.

The theme for International Day for Biological Diversity 2026 is "Acting Locally for Global Impact." This theme sends a clear message: big change starts with small, local actions. Protecting a park in your neighborhood, planting native trees on your street, or reducing pollution in your city all contribute to a healthier planet for everyone.

The 2026 theme is also connected to the Kunming-Montreal Global Biodiversity Framework, which was agreed upon by world governments in December 2022. As the Convention on Biological Diversity outlines, this plan sets 23 targets to be met by 2030, including protecting 30 percent of land and seas, restoring 30 percent of damaged ecosystems, and raising 200 billion US dollars per year for biodiversity. With only a few years left to meet these goals, local action has never been more urgent.

You do not need to be a scientist or a government official to make a difference. There are many simple ways to take part in the International Day for Biological Diversity and help protect nature in your own community.

- Go Outside and Explore: Visit a local park, nature reserve, or green space near you. Join a community walk or a citizen science project that tracks local plants and animals. Every observation you make helps build a bigger picture of the health of our ecosystems.

- Take Action at Home: Plant native species in your garden to support local insects and birds. Reduce your use of single-use plastics to protect waterways and marine life. Keep your pets contained so they do not disturb wild animals. Small habits practiced by many people can add up to a real impact.

- Learn and Share: Read about biodiversity and the threats it faces. Use the hashtag #BiodiversityDay on social media to spread awareness and inspire people around you. The more people understand why biodiversity matters, the more likely they are to act.

- Support Conservation Efforts: Donate your time or money to organizations that protect wildlife and restore natural habitats. Volunteer with local conservation groups or environmental programs in your area. Your support, no matter how small, helps these efforts continue.

- Speak Up in Your Community: Encourage local leaders, schools, and businesses to make decisions that are good for nature. Advocate for more green spaces, better waste management, and sustainable land use in your city or town. Local voices can lead to local change, and local change contributes to global impact.