Options for North South environmental technology transfer on a preferential basis by agreement could include waste water treatment, water conservation and desalinization.

For example, the technique can measure the metabolism of animals in the wild state, with the technical problems being related mainly to how to administer the dose of isotope, and collect several samples of body water at later times to check for differential isotope elimination.

Von Neumann, in the '50s, did the same thing for computing he showed you can have an unreliable computer but restore its state to make it perfect. This was the last great analog computer at MIT a differential analyzer, and the more you ran it, the worse the answer got.