I can see two topics deriving from your comment. The one regards water which is neither managed nor protected, such as the underground water streams in Thessaloniki. The other regards the amounts of water necessary to produce certain products, which in some cases is far more that we would imagine, and as consumers we definitely need to have in mind this information. Which one do you refer to? Of course, both topics bear a lot of interest and could be developed and further worked upon.
