This paper explores the role that infrastructure plays in the fight against climate change. Infrastructure can serve a double purpose in the face of climate change: “green infrastructure” can help reduce climate change by limiting the greenhouse gas emissions produced, while “adapted infrastructure” contributes to the adaptation of a region to the climate of the future. The right infrastructure can also reduce the vulnerability of developing countries, which are the most severely affected by climate change.The author notes that the construction of climate compatible infrastructure is intrinsically linked to public policy, but also to the private sector, as emphasised during the Copenhagen discussions. To optimise the management of risks linked to climate change, it is asserted that long term investors can work around the choice of infrastructure. It is concluded that long-term investors can consciously integrate climate concerns into their calculation of the risk and profits of infrastructural investments, with appropriate support from public policy incentives in order to obtain obvious economic benefits and also accrue social benefits for the society at large. The paper aims to point out that it is in the interest of long term investors to incorporate the cost implications of climate change into their investment or risk calculations. However, before scaling up in investments is attempted, it has to be properly synchronised with public policy.