The Paris Agreement set policy scenarios to address mitigating against the climate emergency, by reducing greenhouse gas emissions to limit temperature increase to 1.5 °C. There has been a drive towards electrifying transport with battery electric vehicles (BEVs) at the forefront. Reliance on single technology policy development can lead to consequential impacts, often not considered or dismissed. Energy cannot be created or destroyed but can be transformed. While BEVs may represent zero tailpipe emissions, the battery energy must be sourced elsewhere. An ideal policy scenario will come from ‘renewable’ sources, however current global energy mixes require the electricity will come from carbon-burning point source emitters. Therefore, the emissions are deferred to low socio-economic regions. The move to ban new internal combustion engine (ICE) vehicle sales has been accelerated. High BEV costs will preclude low-income groups from making purchases. Such groups typically rely on used cars for mobility. Without considered consequential policy analysis, transport underclasses may result where private transport is only accessible by the wealthy. Synthetic fuels derived from CO2 represent a social bridge in the energy transition, also helping to accelerate towards net zero. The Covid-19 lockdown provided a unique opportunity to experience an environment with reduced transport-related emissions. Global studies allowed the consequential effects of pollution reduction to be studied. These are surprising and offer the opportunity for policies, driven by science, to be developed. Here we consider the consequential effects of clean air policies, and how these can be used to propose dynamic responses to policy recommendations.

中文翻译：

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运输转型中的合成燃料：防止运输低产阶级的燃料

《巴黎协定》设定了通过减少温室气体排放将温度升高限制在 1.5°C 来缓解气候紧急情况的政策方案。以电池电动汽车 (BEV) 为最前沿的电动交通工具已成为一种推动力。依赖单一的技术政策制定可能会导致间接影响，而这些影响往往不被考虑或忽视。能量不能被创造或破坏，但可以转化。虽然 BEV 可能代表零尾气排放，但电池能量必须来自其他地方。理想的政策情景将来自“可再生”能源，但当前的全球能源结构要求电力来自碳燃烧点源排放者。因此，排放被推迟到低社会经济地区。禁止新内燃机 (ICE) 汽车销售的举措已经加快。高 BEV 成本将使低收入群体无法购买。这些群体通常依靠二手车来实现出行。如果没有经过深思熟虑的相关政策分析，在私人交通工具只能由富人使用的情况下，可能会导致交通底层。源自二氧化碳的合成燃料代表了能源转型中的社会桥梁，也有助于加速实现净零排放。Covid-19 封锁提供了一个独特的机会，可以体验交通相关排放量减少的环境。全球研究允许研究减少污染的间接影响。这些令人惊讶，并为制定由科学驱动的政策提供了机会。在这里，我们考虑清洁空气政策的间接影响，