Dr. Frank O'Mara:

The point I am making is that if we try to do that using physical measurements on a field by field basis, the cost of doing the measurements would take up a good section of any benefit that is coming. The way forward for doing this is using a remote sensing-type approach so that satellite data, data on the land use and so on can say that the emissions from a field now are X but that if rewetting is carried out, they will be Y.