"According to estimates compiled by the Food and Agriculture Organization (FAO), by 2050 we will need to produce 60 per cent more food to feed a world population of 9.3 billion. Doing that with a farming-as-usual approach would take too heavy a toll on our natural resources. Thus, we have no choice but to embark on a greener revolution. We can sustainably increase crop production by using a range of techniques that are more in tune with ecosystems by minimizing the use of external inputs and by helping farmers cope with the weather extremes that increasingly accompany climate change, thereby enhancing their resilience and reducing greenhouse gas emissions. This is a kind of farming that is useful and accessible to small-scale farmers by being adapted to the conditions they face with emphasis on local crop varieties, and harnessing traditional knowledge to sustain, rather than fight, natural ecosystem processes."
https://www.un.org/en/chronicle/article/feeding-world-sustainably
UN calls for urgent action to feed the world’s growing population healthily, equitably and sustainably
https://www.un.org/sustainabledevelopment/blog/2021/04/un-calls-for-urgent-action-to-feed-the-worlds-growing-population-healthily-equitably-and-sustainably/