Why Biodiversity Conservation is Essential for Our Future

Every species on Earth – from the smallest soil microbe to the largest whale – is part of an intricate web that keeps our planet functioning. Yet this web is fraying at an alarming rate. Biodiversity, the variety of life in all its forms, is declining faster than at any other point in human history. The question is no longer whether we should conserve biodiversity, but whether we can afford the consequences of failing to do so.

The rapid decline of biodiversity 🔗

The numbers paint a stark picture. According to the WWF Living Planet Report 2024, monitored wildlife populations have declined by an average of 73% between 1970 and 2020. Freshwater species have been hit the hardest, with an 85% drop, followed by terrestrial populations at 69% and marine populations at 56%. This data comes from tracking nearly 35,000 vertebrate populations across 5,495 species worldwide.

The IPBES Global Assessment – the most comprehensive study of its kind – found that roughly one million species now face extinction, many within just a few decades. Natural ecosystems have shrunk by 47% on average relative to their earliest estimated states. Around 75% of the land surface has been significantly altered by human activity, 66% of the ocean is experiencing rising cumulative impacts, and more than 85% of wetlands have already been lost.

What’s driving biodiversity loss? 🔗

The main drivers are well understood. Habitat degradation and loss – driven primarily by agriculture and land-use change – top the list. Agricultural expansion accounts for nearly 90% of global deforestation, with cropland responsible for about half and livestock grazing for roughly 39%. Overharvesting, invasive species, pollution, and climate change round out the major threats.

A 2025 study published in Nature by Princeton researchers added another dimension to this picture. It found that consumption-driven deforestation by 24 developed nations was responsible for 13.3% of total range loss suffered by forest-dependent vertebrates globally. On average, these countries caused international biodiversity losses 15 times greater than their domestic impacts. In other words, wealthy nations are effectively outsourcing environmental destruction to other parts of the world.

Climate change is intensifying these pressures. The Arctic, for example, is warming four times faster than the global average. If temperatures exceed 1.5°C – which current projections suggest is likely – the Arctic could lose its summer sea ice by 2050, destroying critical habitats for species like polar bears.

Ecosystem services at risk 🔗

Biodiversity is not just about wildlife – it underpins the essential services that make human life possible. Clean air, fresh water, pollination, climate regulation, nutrient cycling, and flood protection are all products of healthy, biodiverse ecosystems. When species disappear and ecosystems degrade, these services break down.

The economic stakes 🔗

The economic dependence on nature is enormous. According to a 2024 IPBES report, more than half of global GDP – over $50 trillion in annual economic activity – depends on nature. The unaccounted costs of current approaches to economic activity run between $10 and $25 trillion per year. Conversely, taking immediate action on biodiversity could generate $10 trillion in business and innovation opportunities and support 395 million jobs by 2030.

Consider food production. Roughly three-quarters of the world’s food crops depend at least partially on animal pollination. Bees, butterflies, bats, and other pollinators maintain the productivity of farms worldwide. Their decline threatens the food systems that billions of people rely on. Similarly, healthy soils – teeming with organisms that decompose matter, cycle nutrients, and maintain structure – are the basis of agriculture. Degrade the soil biology, and crop yields fall.

Climate regulation and disease prevention 🔗

Forests, wetlands, mangroves, and oceans act as massive carbon sinks, absorbing and storing greenhouse gases. When these ecosystems are destroyed, stored carbon is released back into the atmosphere, accelerating climate change. The WWF’s 2024 report warned that the Earth is approaching dangerous tipping points for tropical forests and coral reefs – tipping points that could trigger cascading consequences for both ecosystems and human societies.

Biodiversity also plays a protective role against infectious diseases. The IPBES has highlighted that intact ecosystems reduce the risk of diseases spreading from animals to humans. Their 2020 pandemics workshop estimated that approximately 800,000 virus variants could potentially be transmitted from wildlife to humans, a risk that grows as natural habitats are fragmented and humans encroach deeper into wild areas.

Ethical and cultural importance 🔗

Beyond economics, biodiversity carries deep ethical and cultural significance. Every species represents millions of years of evolution – a unique thread in life’s tapestry that, once lost, cannot be recovered. Many people and traditions hold that other species have intrinsic value and a right to exist, independent of their usefulness to humans.

Biodiversity and indigenous communities 🔗

This ethical dimension is especially visible among Indigenous Peoples and local communities. According to the World Resources Institute, Indigenous Peoples and local communities manage lands that sustain the livelihoods of at least 1.67 billion people. Their territories hold over half of the world’s remaining intact forest landscapes – roughly 610 million hectares – and often house more species while experiencing lower rates of deforestation than lands managed by other entities.

For these communities, biodiversity is not an abstract concept. It is their food, medicine, shelter, and spiritual practice. IUCN Netherlands notes that losses of biodiversity can have major impacts on cultural diversity, Indigenous knowledge systems, food security, health, and livelihoods – often causing irreparable damage.

Rural livelihoods and traditional knowledge 🔗

Across the developing world, rural communities depend directly on local biodiversity for survival. Wild foods, medicinal plants, timber, fibres, and freshwater fisheries form the backbone of rural economies. When species disappear or ecosystems collapse, these communities – often the least responsible for environmental destruction – bear the greatest burden.

Traditional knowledge systems built over centuries of close observation and interaction with nature have proven highly effective for sustainable resource management. The UN Environment Programme World Conservation Monitoring Centre reports that Indigenous Peoples and local communities are custodians of more than a third of the world’s most important areas for biodiversity, and 42% of land managed by these groups is in good ecological condition. Protecting biodiversity, therefore, also means protecting the cultures, rights, and knowledge systems of these communities.

Global and national responsibility 🔗

The scale of biodiversity loss demands coordinated global action. Several international agreements now frame this responsibility.

The Convention on Biological Diversity and the Kunming-Montreal framework 🔗

The Convention on Biological Diversity (CBD), signed at the 1992 Earth Summit in Rio de Janeiro, established three core objectives: conservation of biological diversity, sustainable use of its components, and fair sharing of benefits from genetic resources. The CBD now has 196 parties and remains the primary international legal framework for biodiversity governance.

In December 2022, at COP15 in Montreal, nations adopted the Kunming-Montreal Global Biodiversity Framework (GBF). This landmark agreement sets four overarching goals for 2050 and 23 action-oriented targets for 2030. Among the most notable is the “30 by 30” target – conserving at least 30% of the world’s land and 30% of its oceans by the end of the decade. The framework also calls on countries to eliminate or reform subsidies harmful to biodiversity – estimated at $500 billion per year – and to close the biodiversity finance gap of $700 billion annually.

Progress and gaps 🔗

The GBF has been described as a “Paris Agreement for nature,” but implementation remains the critical challenge. By late 2024, 119 countries had submitted national targets aligned with the framework. However, the UN SDG report notes that species continue to go extinct, protection of key biodiversity areas has stalled, and illegal wildlife trafficking is increasing. The Red List Index deteriorated by 12% between 1993 and 2024, indicating that species are moving closer to extinction faster than conservation efforts can keep pace.

The previous set of global biodiversity targets – the Aichi Targets set in 2010 – were largely unmet. None of the 20 targets were fully achieved by the 2020 deadline. This history serves as a sobering reminder that agreeing on goals is only the first step. Translating them into enforceable national policies, backed by adequate funding and political will, is what actually protects species and ecosystems.

India’s role as a mega-diverse nation 🔗

India, home to four global biodiversity hotspots and an estimated 7-8% of the world’s recorded species, has a particularly significant role. As one of the world’s 17 mega-diverse countries, its conservation strategies carry global weight. India’s Biological Diversity Act of 2002, its network of national parks and wildlife sanctuaries, and its commitments under the CBD all form part of a broader framework. Yet challenges persist – from rapid urbanisation and industrial expansion to the pressure on forest-dwelling and tribal communities whose livelihoods depend on intact ecosystems.

What needs to change? 🔗

Conserving biodiversity requires action at every level – from international agreements to individual choices. Some key areas stand out.

Transforming food systems 🔗

Agriculture is the single largest driver of habitat loss. Humans use over 40% of habitable land for food production, and the entire food sector generates more than a quarter of greenhouse gas emissions. Shifting toward sustainable farming practices, reducing food waste, and rethinking dietary patterns – particularly the heavy reliance on animal agriculture – can significantly reduce pressure on ecosystems.

Recognising indigenous land rights 🔗

Securing the land rights of Indigenous Peoples and local communities is one of the most cost-effective conservation strategies available. Their lands consistently show better biodiversity outcomes than government-managed protected areas, yet these communities receive less than 1% of international climate funding directed at mitigation and adaptation.

Aligning finance with nature 🔗

Financial systems must stop rewarding activities that destroy nature. The GBF calls for eliminating harmful subsidies and redirecting financial flows toward sustainability. Governments, businesses, and investors all have a role to play in making nature-positive practices the default rather than the exception.

Strengthening enforcement and accountability 🔗

International agreements are only as strong as their implementation. Countries need robust monitoring mechanisms, transparent reporting, and genuine political commitment to meet their biodiversity targets. Civil society, scientific communities, and the media play essential roles in holding governments accountable.

What do you think? Can global agreements like the Kunming-Montreal framework truly reverse biodiversity loss, or do we need fundamentally different approaches to how societies value and interact with nature? And what role can individuals and local communities play in a challenge that often feels overwhelming in its scale?

References

1. https://www.worldwildlife.org/news/press-releases/catastrophic-73-decline-in-the-average-size-of-global-wildlife-populations-in-just-50-years-reveals-a-system-in-peril/
2. https://www.ipbes.net/global-assessment
3. https://cpree.princeton.edu/news/2025/global-biodiversity-loss-tied-outsourced-deforestation-princeton-study-reveals-hidden
4. https://environment.ec.europa.eu/news/ipbes-reports-reveal-huge-opportunities-biodiversity-action-2024-12-18_en
5. https://www.arcticwwf.org/newsroom/news/wwf-living-planet-report-2024-a-planet-in-crisis/
6. https://www.wri.org/insights/indigenous-and-local-community-land-rights-protect-biodiversity
7. https://www.iucn.nl/en/blog/indigenous-peoples-and-biodiversity/
8. https://www.unep-wcmc.org/en/news/championing-indigenous-peoples-stewardship-of-biodiversity
9. https://www.cbd.int/gbf
10. https://www.unep.org/resources/kunming-montreal-global-biodiversity-framework
11. https://unstats.un.org/sdgs/report/2024/Goal-15/