The Hungarian cities of Miskolc, Pécs, and Tatabánya are pursuing ambitious strategies to achieve climate neutrality, with each city considering its specific challenges and strengths. Miskolc, as Hungary’s fourth-largest city, focuses on transforming the energy sector and sustainable mobility, aiming to increase the share of renewable energy to 40% by 2030 and reduce private motorized transport by 30%. Pécs, known as a pioneer in renewable energy, plans to switch entirely to renewable energy by 2030 and is developing an innovative “smart grid” system for efficient energy distribution and use. Tatabánya, a medium-sized city with a strong industrial heritage, is concentrating on transitioning to a circular economy and promoting cleantech companies. All three cities view the transition to a climate-neutral future not only as an ecological necessity but also as an economic opportunity. These strategies aim not only to reduce CO2 emissions but also to improve citizens’ quality of life and create new economic opportunities.