The five biggest threats to our natural world … and how we can stop them

From destructive land use to invasive species, scientists have identified the main drivers of biodiversity loss - so that countries can collectively act to tackle them

• Read more on the Cop15 talks to negotiate new UN targets to protect biodiversity in the coming decade

The world's wildlife populations have plummeted by more than two-thirds since 1970 - and there are no signs that this downward trend is slowing. The first phase of Cop15 talks in Kunming this week will lay the groundwork for governments to draw up a global agreement next year to halt the loss of nature. If they are to succeed, they will need to tackle what the IPBES (Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services) has identified as the five key drivers of biodiversity loss: changes in land and sea use; direct exploitation of natural resources; climate change; pollution; and invasion of alien species.