The Sumatra Merang Peatland Project in South Sumatra, Indonesia, is one of the largest and most ambitious rewetting projects in the region and aims to restore over 22,000 hectares of degraded peatland. These unique ecosystems play a key role in global climate protection, as they store enormous amounts of CO₂ - their preservation and restoration therefore make an important contribution to reducing greenhouse gas emissions. Targeted measures such as the rewetting of dried-out areas and the construction of more than 200 compensatory dams will stabilize the water balance and significantly reduce the risk of fire, which is greatly increased by dried-out peat soils. At the same time, the project is creating a protected habitat for numerous endangered species, including the critically endangered Sumatran tiger. The implementation is supported by modern IoT technology, which enables precise real-time monitoring of water levels, fire hazards and the progress of ecological regeneration.