talk about the course of wildlife extinction and give some solutions

This complex web of life provides the natural systems we depend on – giving us essentials like water, clean air, fertile soils and a stable climate. It gives us food, medicines and materials, and supports millions of jobs. It also inspires people around the world – making our lives richer in all sorts of ways. 
But our planet’s wildlife is in crisis – numbers have fallen by more than half since 1970, and species are going extinct at an alarming rate.
We need to reverse this loss of nature and create a future where wildlife and people thrive again.