Summary of the Glacial Lake Handbook
The handbook captures key lessons from Ing. César A. Portocarrero Rodríguez’s four decades of studying ways to reduce the risks of glacier lake outburst floods in Peru’s Cordillera Blanca. It was produced through the the USAID-funded High Mountains Adaptation Partnership (HiMAP), which has helped to further research on these events - and how to prevent or mitigate them - and share these lessons with local communities.
Peru’s experience is particularly relevant because it has already experienced such floods, which are now predicted for other countries with glaciers that are melting due to climate change. Peru has managed its glacial lakes and developed expertise on managing hazards associated with them.
The summary explains how lakes are formed by glacier retreat and key factors for evaluating risks. It also includes measures to improve safety, including techniques for draining glacial lakes, and considerations for policymakers.