That article does not describe a meta-analysis (or at least it's not clear that it does), and it certainly doesn't 'prove' a link. They classified it as 'possib

That article does not describe a meta-analysis (or at least it's not clear that it does), and it certainly doesn't 'prove' a link. They classified it as 'possibly carcinogenic' because there is some evidence indicating that it increases the risk of cancer. The evidence is inconsistent, and applying the precautionary principle doesn't 'prove' something.