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    • Interesting article, thx. I discussed this with my daughter, who is a vegetarian and molecular biologist. Labeling is not the only issue. Vat meat--like most cell cultures--Is grown in media supplemented with fetal calf serum, which is derived from fetal calf blood. This a a byproduct of industrial livestock production. It doesn't introduce any additional environmental damage, but it would not exist without the wholesale slaughter of cattle. A number of companies are trying to develop synthetic culture media--for good scientific reasons apart from vat meat--but this is considered a difficult problem at the moment. So I guess you'd have to say that vat meat is promising step forward, but at the moment it does not fully address either the environmental or ethical issues of meat consumption.