| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.1038/ngeo2595 |
| A scientific critique of the two-degree climate change target. | |
| Knutti R; Rogelj J; Sedlacek J; Fischer EM | |
| 发表日期 | 2016 |
| 出处 | Nature Geoscience 9 (1): 13-18 |
| 出版年 | 2016 |
| 语种 | 英语 |
| 摘要 | The world's governments agreed to limit global mean temperature change to below 2-derees C compared with pr-industrial levels in the years following the 2009 climate conference in Copenhagen. This 2-degrees C warming target is perceived by the pulic as a universally accepted goal, identified by scientists as a safe limit that avoids dangerous climate change. This perception is incorrect: no scientific assessment has clearly justified or defended the 2-degrees C target as a safe level of warming, and indeed, this is not a problem that science alone can address. We argue that global temperature is the best climate target quantity, but it is unclear what level can be consiered safe. The 2-degrees C target is useful for anchoring discussions, but has been ineffective in triggering the required emission reductions; debates on considering a lower target are strongly at odds with the current real-world level of action. These debates are moot, however, as the decisions that need to be taken now to limit warming to 1.5 or 2 degrees C are very similar. We need to agree how to start, not where to end mitigation. |
| 主题 | Energy (ENE) |
| URL | http://pure.iiasa.ac.at/id/eprint/11706/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/130635 |
| 推荐引用方式 GB/T 7714 | Knutti R,Rogelj J,Sedlacek J,et al. A scientific critique of the two-degree climate change target.. 2016. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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