Despite being responsible for 30-40% of global carbon emissions and exposure to significant physical and transition risks, the real estate sector is not on track to manage these risks effectively. Investors in real estate therefore run significant unmanaged and unrewarded financial risk and contribute to negative impact. It is relatively easier to decarbonize real estate, as compared to other sectors, without major impact on business models and with many profitable or risk reducing sustainability measures available. While these factors contribute to the likelihood of successful investor engagement, the sector remains largely under-engaged. The Global Real Estate Engagement Network (GREEN) was set up to allow its members to improve both, their financial risk management and real world impact, in a very cost effective way.