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This report presents a summary of the key challenges and opportunities related to financing that contributes to water security and sustainable growth distilling insights from the Roundtable on Financing Water and related analyses. It covers a broad range of water-related investments, including water and sanitation services, water resources management, agricultural water and managing water-related risks ('too much', 'too little' and 'too polluted'). It summarises findings from analysis of investments needs and financing capacities, trends in development finance for water and explores how water risks generate financial impacts for corporates. The report highlights options to address the financing challenge by strengthening the enabling environment for investment, making the best use of existing sources of finance, strategic investment planning and mobilising additional finance via a range of financing approaches. Finally, the report sets out a vision for future OECD work on financing water and for the Roundtable on Financing Water.

This paper provides estimates of the cost of preventing land-based plastic leakage into the ocean, covering 38 OECD member countries and 10 selected major plastic waste emitters in Asia and Africa. The study estimates capital costs at EUR 54 billion in the Moderate Ambition scenario and EUR 74 billion in the High Ambition scenario. The annualised per-capita costs range between EUR 0.2 to 6.5 in the Moderate Ambition scenario and from EUR 0.8 to 6.5 in the High Ambition scenario. These cost estimates are much lower than UNEP and ISWA estimates of the cost of inaction of inadequate waste management, roughly USD 9 to 45 per capita. Differences in estimated costs are found to depend on countries’ waste policy stringency and waste management infrastructure. This paper contributes to OECD work in support of a sustainable ocean economy and the Global Plastics Outlook report.

Chile has embarked on an ambitious path towards a new constitution. For all countries, drafting a new constitution or amending an existing one is a stimulating challenge, but also a demanding process from both a political and technical standpoint. This report presents the results of a benchmarking exercise conducted by the OECD of possible constitutional provisions, reflecting the experiences of OECD member countries. The components covered include economic and social rights, the system of government, multi-level governance, constitutional review, fiscal governance and the role and functioning of central banks.

Global warming and air pollution threaten human health, economic prosperity and human capital accumulation. The current review presents empirical findings on the effect of adverse environmental conditions on cognition, with a focus on pollution and high temperatures. The review takes a life-course perspective and quantifies both the direct and indirect effects of cumulative and transitory exposure to adverse conditions on cognition starting in-utero all the way to exposure in old age. The review makes clear that exposure to pollutants and high temperatures has economically meaningful costs for both individuals and societies, stemming from lower human capital accumulation. Furthermore, the evidence presented indicates that adverse environmental conditions have large distributional consequences, leading to widening disparities in educational opportunities both across countries and across socio-economic groups within-countries. The review discusses the mechanisms underpinning these effects and explores policies that have the potential to mitigate the negative impact of adverse conditions on cognition.

This paper examines the current development of hydrogen technology in the manufacturing sector and the industrial policies enacted to support it across countries. In addition to continued R&D efforts, governments can already lay the ground for the deployment of green hydrogen by implementing five types of policies: 1) supporting R&D and demonstration for green hydrogen to bring down the cost of electrolysers and make them competitive; 2) increasing the supply of renewable electricity; 3) reducing the cost gap between green hydrogen and brown technologies through a comprehensive policy package, such as carbon pricing and the phasing out of inefficient fossil fuel subsidies; 4) reducing uncertainty, for instance by promoting international standardisation, hydrogen infrastructure, and sound regulatory standards; and 5) considering blue hydrogen as a short-term option to facilitate the transition to green hydrogen.

While plastics are extremely useful materials for modern society, plastics production and waste generation continue to increase with worsening environmental impacts despite international, national and local policy responses, as well as industry commitments. The urgent need to make the lifecycle of plastics more circular calls for an expansion of national policies and improved international co-operation to mitigate environmental impacts all along the value chain. The first of two reports, this Outlook intends to inform and support policy efforts to combat plastic leakage. The report quantifies the current production, use, disposal and key environmental impacts throughout the entire plastics lifecycle and identifies opportunities for reducing the negative externalities. It also investigates how plastics use and waste have been affected by the COVID-19 pandemic across sectors and regions. The Outlook identifies four key levers for bending the plastics curve: stronger support for recycled (secondary) plastics markets; policies to boost technological innovation in plastics; more ambitious domestic policy measures; and greater international co-operation.

The paper empirically assesses the effect of climate policy stringency on innovation and economic performance, both directly on regulated sectors and indirectly through supply chain relationships. The analysis is based on a combination of firm- and sector-level data, covering 19 countries and the period from 1990 to 2015. The paper shows that climate policies are effective at inducing innovation in low-carbon technologies in directly regulated sectors. It does not find evidence that climate policies induce significant innovation along the supply chain. In addition, there is no evidence that climate policies – through the channel of clean innovation – either harm or improve the economic performance of regulated firms. This supports the evidence that past climate policies have not been major burdens on firms’ competitiveness, and that clean innovation may enable firms to compensate for the potential costs implied by new environmental regulations.

This new web format for Environment at a Glance Indicators provides real-time interactive on-line access to the latest comparable OECD-country data on the environment from the OECD Core Set of Environmental Indicators – a tool to evaluate environmental performance in countries and to track the course towards sustainable development. The web version allows users to play with the data and graphics, download and share them, and consult and download thematic web-books. These indicators provide key messages on major environmental trends in areas such as climate change, biodiversity, water resources, air quality, circular economy and ocean resources. They are accompanied by a short Environment at a Glance report that presents a digest of the key messages stemming from the indicators.