Here’s a good one: WWF is claiming that deforestation is behind increased levels of tiger attacks on Sumatra. So then, by the clear logic of ecosystem services, this is a great reason to keep the forest in tact. You approach the government, show them a chart based on the health care costs associated with all the tiger attacks, and blam – a monetary value on the forest. The Minister of Environment then gives you a funny look, picks up the phone, and instructs the local forest manager to (1) go ahead with the oil palm plantation, but (2) make sure any tigers remaining in the area are killed first. Oooooops.