英国政府与谷歌合作启动名为"蓝天行动"的试验项目，旨在通过改变商业航班飞行路径来减少凝结尾的形成，从而降低航空业对气候变化的贡献。1该试验将在北大西洋东部的香威克航空管制区进行，为期30个月，覆盖今冬及明冬两个冬季。1
试验利用谷歌开发的人工智能预报工具识别凝结尾易于形成的区域，随后指挥飞行员调整飞行高度，最多可调整2000英尺。1预计约10000架航班通过该空域，其中1%至5%的航班将改变路线，试验预计每冬进行20至40天。1该项目总投资500万英镑（约676万美元），英国政府承担超过一半的费用。1
凝结尾对全球变暖的贡献约占1%至2%，而香威克空域产生的凝结尾约占总影响的5%。1项目参与方包括英国交通部、气象局、NATS空管机构、Contrails.org组织、伦敦帝国学院和剑桥大学等机构。1试验旨在验证小幅高度调整能否在整个航空走廊范围内显著减少凝结尾的形成。1
The United Kingdom government and Google have initiated Operation Blue Skies, a 30-month research project designed to test whether small adjustments to aircraft altitude can reduce contrail formation and mitigate aviation's contribution to climate change.1 The trial is taking place in the Shanwick Oceanic Control Area, located in the eastern portion of the North Atlantic flight corridor, and will run across two consecutive winter periods with testing occurring for approximately 20 to 40 days each season.1
The experiment leverages Google's artificial intelligence forecasting tools to identify regions where contrails are likely to form and guides pilots to adjust their cruising altitude by up to 2,000 feet to avoid these conditions.1 Among the approximately 10,000 aircraft expected to traverse the airspace during the trial period, between one and five percent are projected to alter their flight paths based on these recommendations.1 Research indicates that contrails account for between one and two percent of global warming, with the Shanwick airspace alone responsible for roughly five percent of the total contrail impact.1
The initiative brings together multiple partners including the UK Department for Transport, Google, the Met Office, NATS air traffic control, Contrails.org, Imperial College London, and the University of Cambridge.1 The project carries a total cost of 5 million British pounds, approximately 6.76 million US dollars, with the UK government funding more than half of the expenses.1
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