V2EX global warming potential

Global Warming Potential

定义 Definition

全球变暖潜势(常缩写为 GWP):用来衡量某种温室气体在特定时间尺度(常用 20 年、100 年、500 年)内,相对于二氧化碳(CO,规定为 1)对全球变暖造成的累积影响的指标。数值越高,表示单位质量该气体的“增温影响”越强。(在不同时间尺度下,GWP 可能不同。)

发音 Pronunciation (IPA)

/lobl wrm ptnl/

例句 Examples

Global warming potential helps compare different greenhouse gases.
全球变暖潜势有助于比较不同温室气体的影响。

Although methane stays in the atmosphere for a shorter time than CO, its global warming potential over 20 years is much higher.
尽管甲烷在大气中的停留时间比二氧化碳短,但在 20 年时间尺度上,它的全球变暖潜势要高得多。

词源 Etymology

该术语由 global(全球的)+ warming(变暖)+ potential(潜势/潜力)组成,是气候科学与政策领域的专业表达,用于把不同温室气体的增温影响换算到同一参照(CO)上,便于制定减排目标与进行排放核算。该概念在国际气候评估与政策文(如 IPCC 报告、气候谈判文件)中被广泛采用。

相关词 Related Words

文学与重要著作中的用例 Literary & Notable Works

  • IPCC Assessment Reports(政府间气候变化专门委员会评估报告;多版均系统定义并更新 GWP 的计算与取值)
  • Kyoto Protocol(《京都议定书》;以 CO 当量等方式将多种温室气体纳入减排框架,常与 GWP 一并使用)
  • UNFCCC Reporting Guidelines(《联合国气候变化框架公约》温室气体清单/报告指南;在排放核算与换算中使用 GWP)
  • Shine, K. P., et al. (1990), “Radiative forcing of climate change”(早期经典综述与方法框架之一,讨论与 GWP 等指标相关的辐射强迫概念)
  • The IPCC Guidelines for National Greenhouse Gas Inventories(国家温室气体清单指南;在清单编制与 CO 当量换算中使用 GWP)
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