Enviropreneurship and land conservation.
To keep the water running in LasVegas, recognize scarcity and let water rates rise-- double or even triple. Encourage homeowners to trade water rights. Let the market determine how much water people use, not the water police.
One fellow at PERC's 2011 Enviropreneur Institute explored ways to create incentives for oil companies to work with conservation organizations like TNC to plan their projects to avoid sensitive areas and minimize impacts.