KATOWICE, POLAND - DECEMBER 4: People wearing traditional mining uniforms during the Barborka celebration, on the Miner’s Day, in the historic mining district Nikiszowiec in Katowice, Poland on December 4, 2022. Barborka is a traditional Polish holiday celebrated on the day of Saint Barbara, the patron of miners. The Silesia region, which biggest city is Katowice, is one of the biggest coal mining area in Europe, with a strong tradition, many mines and thousands of people work in the industry. In recent years, a lot of emotions have arisen due to the transition to the ecological energy sources, which would involve changing jobs for many people. Also this year, because of the war in Ukraine, the price of coal, which remains the main source of heat for many homes in the country, has increased, reviving the debate. Jakub Porzycki / Anadolu Agency/ABACAPRESS.COM