From fish to clean water, the ocean matters and here’s how to quantify the benefits

Drake's Island in Plymouth Sound, Devon, is part of the UK's first national marine park. Artur Niedzwiedz/Shutterstock

Nature protection, conservation and restoration is “not a trivial matter but key to human survival,” according to scientists quoted in a 2005 UN report. To demonstrate this, they developed the concept of “ecosystem services” – the benefits that people derive from nature. Over the next 20 years, this concept has been in constant development to reflect our growing understanding of how ecosystems work and how we benefit from them.

For many people, it feels wrong to take a human-centred view on nature. But for governments and conservation organisations, this concept is a useful tool. It helps us quantify the value of nature and make sure certain aspects are conserved and protected.