BEUC members have identified several examples of 17 European airlines using misleading practices aimed at consumers. According to members, the claim that the payment of additional credits can "neutralize", "offset" or "offset" carbon dioxide emissions from aviation is incorrect, as the actual climate benefits of such offsetting efforts remain highly uncertain, while the harms of carbon emissions from aviation are unquestionable. In addition, members said airlines are also misleading consumers by charging them an additional price to contribute to the development of "sustainable aviation fuels".