Germany has a 150-year-old rule about forests. It may be the sanest idea in travel right now.
Southwestern Germany’s Palatinate region demonstrates how sustainable tourism can work in practice. The area combines 130 medieval castles with Germany’s only cross-border UNESCO biosphere reserve. Local foresters developed the sustainability concept Nachhaltigkeit over 150 years ago, establishing one core principle: never extract more wood from a forest annually than it can naturally produce. This simple rule of consuming only what you produce now guides everything from fungus-resistant grapevine cultivation to circular economy oil mills that repurpose press cake waste into high-protein food ingredients.