Yes. There are a number of measurement devices that are being experimented with right now. If I was asked categorically if there was one that you would depend upon, I would say no. They're still trying to do regression analysis to find out if these measurement devices.... Satellite imagery to ascertain carbon in soils is still a long way off.
In western Canada, a lot of the carbon is sequestered in the top zero to six inches of the soil, but in eastern Canada you have more tillage and more rainfall, so consequently the carbon sequestration is deeper in the plow layer. I think it's pretty hard to ascertain all of that coming from satellite remote-sensing imagery.