evidence: Cambodia stands at the crossroads of economic growth and natural resource preservation. It has a vibrant young population, one of the highest rates of deforestation of any country on the planet, and significant development challenges. Private sector interests in cash crops, timber, and textile mills compete with Cambodia’s need to feed its people and protect its natural resources. Government decision-makers must try to balance private investments with sustainable development goals. It has been difficult to compare the potential benefits and costs of development options because decision-makers lacked information. [...] Local communes use the WESTool to create land-use plans and evaluate how dams, roads, and other land-use decisions will affect the landscape. "Just by clicking on the tools in the WESTool home page, we can see potential impacts regarding land use, deforestation, drought, or flood modeling," said Ley Phanna, chief of the Planning and Supporting Communes office in Stung Treng Province, Cambodia.