Pressure is increasing on all industrial sectors to address climate sustainability, not only for the welfare of the planet, but also to preserve the customer base and manage operating costs. The aviation industry has a unique opportunity to halve its global radiative forcing (RF) contribution by minimizing the generation of aircraft induced clouds (AIC). These anthropogenic (human-made) condensation trails create a greenhouse effect by absorbing or directing back to Earth approximately 33% of emitted outgoing thermal longwave radiation. The effect of AIC accounts for 2% of the Earth's total anthropogenic RF. The effect of reducing AIC on global warming is immediate (unlike CO₂ emissions which have a 2-decade delay in affecting global warming).

This paper describes the physics of AIC formation and RF to identify candidate interventions to reduce AIC RF: 1) reduce the quantity of soot generated, 2) reduce or eliminate ice crystal formation, and 3) modify RF properties of AIC. The highest utility and lowest costs is to reduce ice crystal formation by avoiding cruise flight levels in the atmospheric conditions that are conducive to AIC generation. Reducing soot through drop-in biofuels, and synthetic fuels, require significant investment to scale production. Options that require the redesign of jet engines or use of alternative fuels such as liquid natural gas and liquid hydrogen, require significant research and turn-over of the existing fleets. Fuel additives to suppress ice crystal formation, change the RF properties of ice crystals, or both, are still nascent research topics. The implications and limitations are discussed.

所有工业部门面临的压力越来越大，以解决气候可持续性问题，这不仅是为了保护地球，还为了维护客户群并管理运营成本。航空业有一个独特的机会，可以通过最大程度地减少飞机感应云（AIC）的产生，将其对全球辐射强迫（RF）的贡献减少一半。这些人为的（人造的）凝结尾迹通过吸收或引导地球发出的约33％的热长波辐射出射而产生温室效应。AIC的影响占地球人为总RF的2％。减少AIC对全球变暖的影响是立竿见影的（与CO ₂排放不同，CO ₂排放对全球变暖的影响延迟了两个十年）。

本文介绍了AIC形成和RF的物理原理，以确定减少AIC RF的候选干预措施：1）减少烟尘的产生量； 2）减少或消除冰晶的形成； 3）修改AIC的RF特性。最高的效用和最低的成本是通过避免在有利于AIC产生的大气条件下的巡航飞行水平来减少冰晶的形成。通过直接使用生物燃料和合成燃料减少烟灰需要大量投资以扩大生产规模。需要重新设计喷气发动机或使用替代燃料（例如液态天然气和液态氢）的选件需要对现有机队进行大量研究和交接。抑制冰晶形成，改变冰晶的RF特性或同时改变两者的燃料添加剂仍是新兴的研究主题。