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Contents 7 Introduction 16 Grand Challenge 1: Sustainability We need to conserve and manage natural landscapes and maintain environmental quality while optimizing renewable resource productivity to meet increasing human demands for natural resources, particularly with respect to increasing water, food, and energy demands. Grand Challenge 2: Water We must restore, protect and conserve watersheds for biodiversity, water resources, pollution reduction and water security. Grand Challenge 3: Climatedoi:10.3106/041.041.0203 fatcat:k3zro4vbgvad5m6qybz632a5gi