Feature
Cooling Singapore 2.0: A Digital Twin for Heat
A multi-institute research effort led by the Singapore-ETH Centre has built a Digital Urban Climate Twin (DUCT) that models the entire city's thermal behaviour. Over 20 researchers spent four years integrating vegetation cover, traffic patterns, industrial heat emissions, and weather station data into a single interactive simulation.
Urban areas in Singapore can be up to 7°C hotter than surrounding rural land. The DUCT lets planners test scenarios before committing resources — from adding tree canopy cover along a specific corridor to switching an entire bus fleet to electric vehicles, which could reduce roadside heat emissions by up to 85%.
The tool is now available to government agencies through the Ministry of Sustainability and the Environment.