AI Takes Flight: Cathay Pacific and Google Tackle Contrail Warming Impact

Cathay Pacific and Google have joined forces to tackle climate-warming aircraft contrails using AI-powered technology. The trial, which began in late 2025, uses Google's AI-based forecasting tools to identify areas where contrails are likely to form, allowing pilots to adjust flight altitude accordingly.

According to a joint statement from the companies, an initial test on over 80 Cathay flights achieved an estimated 40% reduction in contrail warming impact. The Hong Kong carrier is Google's first commercial airline partner in Asia-Pacific for this technology and the first airline globally to test contrail avoidance on ultra-long-haul flights.

A larger second phase of trials will be conducted across Cathay's Asian and trans-Pacific network, where persistent contrails could account for around one-third of aviation's total climate impact. Michael Yue, Google Hong Kong's managing director and general manager, stated that the partnership aims to research 'how predictive AI can be deployed in live operations to help address climate impact of contrails with today's aircrafts and today's fuel.'