| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.1088/1748-9326/aaf07b |
| Response of electricity sector air pollution emissions to drought conditions in the western United States. | |
| Herrera-Estrada J; Diffenbaugh N; Wagner F; Craft A; Sheffield J | |
| 发表日期 | 2018 |
| 出处 | Environmental Research Letters 13 (12): e124032 |
| 出版年 | 2018 |
| 语种 | 英语 |
| 摘要 | Water is needed for hydroelectric generation and to cool thermoelectric power plants. This dependence on water makes electricity generation vulnerable to droughts. Furthermore, because power sector CO2 emissions amount to approximately one third of total US emissions, droughts could influence the inter-annual variability of state- and national-scale emissions. However, the magnitude of drought-induced changes in power sector emissions is not well understood, especially in the context of climate mitigation policies. Using multivariate linear regressions, we find that droughts are positively correlated to increases in electricity generation from natural gas in California, Idaho, Oregon, and Washington; and from coal in Colorado, Montana, Oregon, Utah, Washington, and Wyoming. Using a statistical model, we estimate that this shift in generation sources led to total increases in regional emissions of 100 Mt of CO2, 45 kt of SO2, and 57 kt of NO x from 2001 to 2015, most of which originated in California, Oregon, Washington, and Wyoming. The CO2 emissions induced by droughts in California, Idaho, Oregon, and Washington amounted to 7%–12% of the total CO2 emissions from their respective power sectors, and the yearly rates were 8%–15% of their respective 2030 yearly targets outlined in the Clean Power Plan (CPP). Although there is uncertainty surrounding the CPP, its targets provide appropriate reference points for climate mitigation goals for the power sector. Given the global importance of hydroelectric and thermoelectric power, our results represent a critical step in quantifying the impact of drought on pollutant emissions from the power sector—and thus on mitigation targets—in other regions of the world. |
| 主题 | Air Quality & ; Greenhouse Gases (AIR) |
| URL | http://pure.iiasa.ac.at/id/eprint/15693/ |
| 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/131287 |
| 推荐引用方式 GB/T 7714 | Herrera-Estrada J,Diffenbaugh N,Wagner F,et al. Response of electricity sector air pollution emissions to drought conditions in the western United States.. 2018. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Herrera-Estrada_2018（1137KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
