… to pay to protect a river in Thailand can help put a tangible price-tag on the river’s benefits — from clean water to flood control — and … are easily overexploited and degraded. Of course, putting a price-tag on a river’s services is hard — but not impossible. One option is to … in pockets, the price-tag could end up lower). This kind of concrete valuation provides a sharp reminder that the benefits we reap from …