A common practice in the valuation of resources has been to compare estimates of their consumptive and non-consumptive uses (UNEP 2006). Yet, where it has been adopted, it has often demanded trade-offs in exchange for compliance on the part of users to discard consumptive, presumably more materially beneficial uses, to less attractive but ecologically more sustainable activities with assumed long-term gains such as social benefits (improved income). Numerous examples of ecotourism projects are found in the region.