OECD Infrastructure Toolkit

Green

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Environmentally sustainable and climate-resilient infrastructure

The magnitude and urgency of the climate crisis calls for a new holistic public governance approach to infrastructure to make the green transition happen. This implies the mobilisation of all public policy and expenditure tools for an effective green transition, taking present and future environmental impacts of today’s policy decisions into account.

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Note: The OECD average values do not include data for Belgium (Flanders) as it does not have complete data for all sub-pillars. Only the sub-pillars with complete data are shown.

Why is this important?

With infrastructure increasingly playing a major role in governments’ environmental agendas, governments will require the right set of tools to navigate difficult policy choices in the short- and medium-term. The green transition will depend to a large extent on governments’ ability to deliver environmentally sustainable infrastructure. Strengthening the quality of governments’ steering is thus key to deliver on greener and cleaner infrastructure targets nationally and internationally, and to engage with the private sector and the civil society to work collectively towards achieving these objectives. 

Adoption of infrastructure guidelines for environmental sustainability and climate resilience in OECD countries, 2022

Integrating environmental and climate considerations into transport project selection and prioritisation in OECD countries, 2022

How to guide delivery of environmentally sustainable and climate-resilient infrastructure?

Steering the green agenda: aligning the strategic long-term infrastructure vision with environmental and climate policy objectives

Countries can improve infrastructure long-term planning to ensure that the long-term vision is aligned with climate and environmental objectives and can be used as an instrument to steer the green agenda by:

  • Demonstrating clear and credible commitment to long-term climate goals, international biodiversity targets, and other environmental objectives;
  • Ensuring that infrastructure long-term planning takes into account environmental and climate considerations, and the link with other government priorities such as inclusion and territorial development;
  • Using the vision to underline a clear investment strategy that sends a message to financial markets of strong government leadership and will for low-carbon infrastructure;
  • Accommodating future uncertainties resulting from climate change and technological innovation;
  • Estimating the potential effect of the long-term strategic vision on the environment;
  • Ensuring cross-sector synergies and introducing a systemic approach to improve resilience in the long-term;
  • Developing a strategy to scale up financing of sustainable infrastructure in the medium and long-term;
  • Developing transparent pathways to create greater investment predictability and strengthening the demand for sustainable investment.

Strengthening project alignment with environmental and climate objectives and delivery for a sustainable infrastructure pipeline

Countries can ensure that the project appraisal and prioritisation process fosters sustainable infrastructure by:

  • Better integrating environmental and climate considerations into project prioritisation, while also broadening the scope of the cost-benefit analysis;
  • Including sustainability as part of a rigorous project assessment process to inform the capital budgeting process;
  • Ensuring decisions on infrastructure investments are informed by robust evidence-based analysis;
  • Accurately accounting for the financial cost of carbon and environmental externalities in the financial evaluation of infrastructure projects;
  • Supplementing cost-benefit analysis with other methodological tools to analyse both monetary and non-monetary costs, such as multi-criteria analysis;
  • Integrating sustainability considerations into the evaluation of projects;
  • Valuing ecologically sustainable project design;
  • Adopting a life-cycle perspective to estimate environmental benefits and costs of an infrastructure asset;
  • Engaging stakeholders to ensure infrastructure needs are addressed in a sustainable, inclusive and effective way;
  • Aligning existing evaluation tools and processes with environmental and climate objectives to streamline implementation.

Capacity building for delivery of environmentally sustainable and climate-resilient infrastructure

Countries can foster capacity building for delivery of environmentally sustainable and climate-resilient infrastructure by:

  • Identifying key challenges and reasons for project failure and providing support to develop a mitigation strategy;
  • Increasing awareness and providing capacity building on environmentally sustainable and climate-resilient infrastructure;
  • Improving capability to translate climate objectives into functional specifications for PPP and project tenders;
  • Leveraging public development finance institutions to play a catalytic role and strengthening the public sector’s capacity;
  • Improving visibility and technical assistance to projects and making smart use of financial resources.

Country case studies

Related publications

Learn more about OECD analysis on green infrastructure:

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