This report is based on a targeted review of Singapore's approach to climate change, focusing on how the country drives energy efficiency and reduces GHG emissions in the ICT sector, particularly in data centers. It aims to reflect the various measures undertaken by the Singapore Government, present lessons learned, keytakeaways and challenges that continue to lie ahead. The information in this version is current as of end November 2023. The purpose of this report is to provide the key lessons for broad, multistakeholder consideration and dialogue forwhat countries could consider as they approach "greening" the ICT sector. It is important to note that addressing all the issues raised in this report does not guarantee a perfect, or even workable, enabling environment to meet theglobal climate change challenge. This is because the effectiveness of these measures can be affected by exogenous factors and the unique national circumstances of each country.