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The European Union (EU) has consistently held a prominent global position in climate governance. This paper compiles 152 climate neutrality policies issued by the European Commission (EU Commission) and employs a systematic analytical framework including "Vertical Policy Hierarchy - Horizontal Policy Path – Systematic Policy instruments" to conduct an in-depth analysis of the EU's climate neutrality policy system. This study produces several findings as follows: First, the EU's climate neutrality policy hierarchy is characterized by a structure comprising "Long-Term Planning – Specific Measures - Financial Support". Second, the EU's policy formulation process for climate neutrality emphasizes the integration of a multi-party engagement mechanism involving "Nongovernmental Level - Regional Level - National Level - Transnational Level - Supranational Level", while extensively employing a "framework-content" policy-making methodology. Third, the EU's climate neutrality governance is guided by the dual objectives of achieving a "Cleaner Energy Structure" and "Recover Ecological Environment" pursuing a broad-ranging and multi-tiered policy pathway towards climate neutrality. Fourth, the EU leverages a combined approach of mandatory measures and guiding policies to propel the climate neutrality governance process, aspiring to achieve breakthroughs in new energy technology innovation through climate neutrality governance, thereby solidifying its international standing. Moreover, this study provides an outlook on the future of the EU's climate neutrality policy governance, positing that the EU's emphasis on climate neutrality governance will remain undiminished, with a heightened focus on guiding policies and an emphasis on the roles of enterprises and the public in advancing the realization of climate neutrality. [ABSTRACT FROM AUTHOR]

The IPCC's 6th assessment report (AR6) has provided a wide range of variables and scenarios that meet climate targets of varying ambition. Many variables reported in the AR6 affect human welfare through climate change and mitigation, including but not limited to economic output, the natural environment, human health, and food and energy supply. In some of these dimensions, trade-offs exist between better performance in welfare-relevant dimensions and reaching more ambitious climate targets. Here, we apply recent advances in the theoretical multidimensional measurement of welfare, like the Human Development Index, to the AR6 database. The welfare metric is based on a welfare function approach, simple to apply, and intuitive. We apply a range of specifications of the welfare metric, aiming to derive robust rankings of climate policy targets that perform best in terms of the multidimensional welfare index. Across a large range of weights on welfare-relevant variables, we find that lower temperature is associated with higher welfare in 2100 unless there is a high weight on food supply. [ABSTRACT FROM AUTHOR]