The UN's Food and Agriculture Organization has published a report suggesting that a decline in biodiversity poses a growing threat to food security. According to the UN study, the plants, animals, and microorganisms that are the bedrock of food production are in decline as a result of changes in land and water use and management, pollution, and climate change, among other drivers. The report highlights a number of "biodiversity friendly practices" that countries are beginning to adopt, but suggests that changes are not happening quickly enough. For the full story, see https://www.bbc.com/news/science-environment-47308235.