The 40 trillion dollar infrastructure hidden in wild plant diversity
In short: We often view crops as the backbone of human civilization, but they represent only a tiny fraction of our botanical heritage. Beyond our fields lies a vast wilderness of plants that provide essential ecosystem services—from the air we breathe to the water we drink—valued at trillions of dollars.
While 80% of our plant-based food intake is derived from just 12 domesticated species, there are approximately 30,000 different edible plant species globally. Many of these are harvested directly from the wild or cultivated in various regions. In some areas, this reliance is profound: a study in southern Africa found that wild plants account for 30% of household livelihoods, while in Tanzania, nearly 50% of vegetables consumed by people are gathered from the wild.
Wild plants serve as the fundamental building blocks of terrestrial ecosystems. Global ecosystem services might be worth anywhere from 30 to 40 trillion US dollars every year, according to environmental economists. These include vital resources like clean water, shelter, and oxygen. A prime example is the 'miracle tree' Moringa oleifera; every part of this tree provides a utility, from its pods as vegetables and roots for medicine to its branches for fuel wood and seeds for water purification.
To combat the global biodiversity crisis, Kew’s Millennium Seed Bank Partnership manages the world’s largest underground seed bank. Located in Sussex, UK, it houses over 2.5 billion seeds from more than 40,000 different species and taxa, representing a resource managed on behalf of over 100 countries. The facility uses solar power and protects seeds against disasters like fire or floods.
The strategy for conservation goes beyond mere storage in cold rooms. Seeds are kept in underground vaults under freezing conditions or in -196 Celsius liquid nitrogen cryopreservation tanks. Scientists use on-site laboratories to study seed biology, identifying species with specific traits—such as stress tolerance and longevity—that may be best suited to adapt to future global climatic conditions.
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Sources
- Summary by Intellect · source: Human Livelihoods Depend on Wild Flowers: Kew's Millennium Seed Bank explained - Dr Robin Probert
- Also: Human Livelihoods Depend on Wild Flowers: Kew’s Millennium Seed Bank explained
- Also: Millennium Seed Bank - Banking the world's seeds | Kew
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