'Stone age' Food Production?

 

Michael Grunwald's book, Are We Eating the Earth? points out that around one third of 'greenhouse gases' are generated by processes used in food production. Areas that would have been effective carbon stores, are converted into land to grow crops/feed domesticated animals. Richer parts of the world want more and more protein. It's suggested that, in terms of reducing emissions, food production is currently in the Stone age (https://www.theguardian.com/environment/2025/aug/14/we-are-eating-the-earth-book-climate). Grunwald also reiterates that adding carbon to soil is not a solution and that growing biofuels is just silly. Clearly, we need to put at least as much effort into reducing emissions from food production, as we do for electricity generation and transport.