Global S&T Development Trend Analysis Platform of Resources and Environment
Climate Economics Support for the UN Climate Targets | |
Martin Hänsel; Moritz Drupp; Daniel Johansson; Mark Freeman; Ben Groom; and Thomas Sterner | |
2020-07-13 | |
出版年 | 2020 |
国家 | 美国 |
领域 | 资源环境 |
英文摘要 | Under the UN Paris Agreement, countries committed to limiting global warming to well below 2 °C and to actively pursue a 1.5 °C limit. Yet, according to the 2018 Economics Nobel laureate William Nordhaus, these targets are economically suboptimal or unattainable and the world community should aim for 3.5 °C in 2100 instead. Here, we show that the UN climate targets may be optimal even in the Dynamic Integrated Climate–Economy (DICE) integrated assessment model, when appropriately updated. Changes to DICE include more accurate calibration of the carbon cycle and energy balance model, and updated climate damage estimates. To determine economically ‘optimal’ climate policy paths, we use the range of expert views on the ethics of intergenerational welfare. When updates from climate science and economics are considered jointly, we find that around three-quarters (or one-third) of expert views on intergenerational welfare translate into economically optimal climate policy paths that are consistent with the 2 °C (or 1.5 °C) target. |
URL | 查看原文 |
来源平台 | Resources for the Future |
文献类型 | 科技报告 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/284374 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Martin Hänsel,Moritz Drupp,Daniel Johansson,et al. Climate Economics Support for the UN Climate Targets,2020. |
条目包含的文件 | 条目无相关文件。 |
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