Results: Laboratory-grown beef: meat without the murder

Growing meat in labs could cut hunger, tackle climate change and end animal slaughter, but creator Professor Mark Post says the biggest beef will be convincing consumers. "People find it hard to think about these terms in the absence of any real alternative. I think [lab-grown meat] will change our attitude to animal welfare. Those issues are there today but we ignore them because we don't have an alternative. If we had an alternative, we could no longer ignore them. It will change our whole attitude towards meat, I think" says Post.