This report aims to demonstrate how a rapid climate change impact assessment can be used to identify the possible impacts of climate change on a thermal power investment project. For this demonstration, the O MON IV Combined Cycle Power Station Project in Southern Vietnam is used for illustrative purposes.

With more than half the Earth’s population now living in urban areas, some changes in the indoor and outdoor climates of cities are bound to occur. Climate scientists’ greatest concern is traditionally the urban heat island (UHI) effect – city areas where temperatures can be several degrees higher because there is lots of concrete and little blue or green infrastructure like lakes, rivers and parks. But another effect – air flow – can also cause serious health problems.