Busan, the M!CE city of South Korea, has adopted a climate change response plan to achieve carbon neutrality by 2050. The plan covers seven sectors, including industry and waste, and includes 104 specific implementation tasks. The primary objective is to reduce greenhouse gas emissions by 47 per cent from 2018 to 2030 and achieve carbon neutrality by 2050. To raise awareness and support, Busan has launched a carbon neutrality policy website called “Net Zero Busan.” Busan has also developed an eco-friendly app that allows travellers to enjoy their journeys while contributing to environmental preservation. With these efforts, Busan is well on its way to transitioning into a fully carbon-zero city by 2050.