Food is what links us all: we all eat. What food we can afford, what we eat, how we eat it and where it comes from affects our health, our environment and other people's lives. London has a strong track record of a city that has supported community food growing and urban farms, and these projects have supported local communities in mulipe ways from health and well-being to social benefits, skills development and access to fresh food (you can see details of food growing benefits in Capital Growth's report growing success - https://www.sustainweb.org/publications/growing_success/?section=66 ).
The environmental strategy focuses on green space, and that's great. But promoting food growing by supporting initiatives helping community groups grow food, allowing the use of land to develop food gardens in parks, in delerict areas and underused space would be a sure way to help strenghtening communities by creating hubs that increase health and wellbeing, promote skill sharing, increase access to fresh food and offer a space where people from all ages and background can come and connect.