Climate change is leading to rising sea levels and greater storm intensity, creating risks for coastal infrastructure, including the ports across Asia Pacific that underpin global trade Financial backers for new infrastructure, such as projects related to the Belt and Road Initiative, should ensure that projects have built climate projections into asset development and long-term capital plans to avoid facing such costs in the future. We estimate a potential cost of between US$31 billion and US$49 billion to protect and elevate 53 of the region’s largest port areas to adapt to climate related risks.