Louisa Pharoah is the director of development at the Soil Association, the UK's largest certifier of organic food and charity for organic and agoecological issues.
Using no synthetic nitrogen fertilisers and storing more carbon in healthy soils are some of the ways organic farms help mitigate climate change.
Food, Farming, Fairness, every Friday.
Find out more about Wicked Leeks and our publisher, organic veg box company Riverford.