Just like a nice recursive call, the article you link to relies on a lot of information from the Soil Association which the parent article is refuting. I agree

Just like a nice recursive call, the article you link to relies on a lot of information from the Soil Association which the parent article is refuting. I agree that organic is not the same as 'low externalities'. Pricing in all the externalities would be the best thing. As for the 'non-externality' costs the may be some extra demand for land but for that happen the demand for non-organic would have fallen significantly - most likely faster than supply. So in the short and medium term the prices of non -organic would actually fall.