There's a ton individuals can do.
The societal solutions to this has been around from decades, if not centuries. Look up the documentary called Kiss the Earth for a good intro that covers this and more.
As far as individuals goes, you can look for food sourced locally using regenerative agriculture -- agroforestry, permaculture, etc. The farm is usually operated as a diverse ecosystem that is designed to grow the soil as part of an integrated effort. They usually have livestock raised with the crops. None of this stuff is really new and doesn't require bleeding edge technology. We've had people practicing these things for a very long time.
There are also other things you can do to take more direct action as an individual: grow your own food, participate in communities that are planting and growing a food forest in parks, participate in composting, or better yet, compost on-site for your garden.