Hydrology, water resources availability and management in the Andes under climate change and human impacts

•This Special Issue investigates water availability and management across the Andes.•It includes novel approaches to couple climate and hydrology with human water needs.•The collection enables an integrated analysis to reduce future risk of water scarcity.•Andean water research requires improved data collection and plausible future scenarios.•Adaptive water management needs to foster science-policy dialogue processes.