Pakistan, Nov. 3 -- The prevalent environmental, food and water security issues pose a serious threat to the world. A question often raised in the minds of people about a piece of land is how efficiently it can be used. The question prompted me, as a novice, to research, read and conceptualise farming. It, in fact, made me agree that issues warrant taking measures which are green, regenerative and not capital intensive and help small land-owning farmers to adopt an integrated approach to farming. It therefore can entail different levels, from mere subsistence farms to a model of self-sustenance, graduating to farms which provide multi-stream income for a family. Such practices in farming are not new but have roots in ancient Chinese fish ...