(5)Sustainability and the transition to a low-carbon, climate resilient, more resource-efficient and circular economy are crucial to ensuring the long-term competitiveness of the Union economy. Sustainability has long been central to the Union project, and the Treaty on European Union and the Treaty on the Functioning of the European Union (TFEU) reflect its social and environmental dimensions. There is a limited window in which to transform the culture in the financial sector towards sustainability to ensure that the global average temperature rise stays well below 2 °C. It is therefore essential that new infrastructure investments are sustainable in the long term.