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This research paper argues that national budgets in developing and emerging economies are insufficient to meet the high-ambition mitigation pathways required by the Paris Agreement, necessitating increased international climate finance based on the principle of common but differentiated responsibilities (CBDR).

This policy brief examines the polluter-pays principle (PPP), which requires pollution producers to bear the costs of managing and preventing environmental and human health damage. While established in European Union and OECD frameworks, the PPP faces challenges in universal international application due to ambiguities in defining 'the polluter' and differing national legal systems. The document explores the PPP's intersection with international climate change law, the principle of common but differentiated responsibilities (CBDR), and efforts by global financial institutions to implement carbon pricing.

This report by the International Institute for Sustainable Development analyzes the evolution of global climate governance from the 1979 World Climate Conference to the 2015 Paris Agreement. It examines the shift from 'top-down' prescriptive instruments like the Kyoto Protocol to 'bottom-up' participatory frameworks, highlighting the ongoing tension between universal participation and the equitable distribution of responsibilities based on historical emissions and national capacities.