Emissions from European aviation have almost bounced back to 2019 levels, with flights within Europe even exceeding these, a new T&E study shows. The EU’s carbon market (EU ETS) is currently failing to address the true cost of these emissions, amid signs of climate backtracking from airlines. Aviation emissions and traffic up, low-cost airlines eat up more of the market / In 2024, the European aviation sector almost fully bounced back to pre-COVID levels [1], reaching 96% of 2019 flight numbers and 98% of emissions. The study also shows that ten airlines were responsible for 40% of all European aviation emissions, the top polluters being Ryanair (16 Mt CO2), Lufthansa (10 Mt CO2) and British Airways (9 Mt CO2). (....)