There is a fundamental logic that it must be good for rich countries to transfer money to these countries in order to guarantee the maintenance of the forests, thus paying local people to forgo use. The problem is that the deals are being done between national governments and the big commercial enterprises that have emerged as carbon brokers - these groups need simple measures that are easily verifiable to justify their payments. There is a great deal of interest in the use of remote satellite imagery to measure carbon stocks so as to assess payments.