Poznań is another city which, thanks to the support of Santander Bank Polska, Bank Gospodarstwa Krajowego and Solaris Bus & Coach, has expanded its fleet of zero-emission buses. In July 2020, a similar investment was made in Kraków. The city ordered 50 electric buses. By 2025, all local government units are expected to reach the threshold of 30% zero-emission vehicles. The pursuit of such targets is necessary if we want to ensure sustainable development of the country and the health of city residents.