Steel workers at Dirostahl in Remscheid

An employee of Dirostahl, a medium-size forging steel firm that produces large, forged parts, works with a special vehicle on a classic natural gas-fired furnace that is heated to 1,200 degrees Celsius in Remscheid, Germany, June 30, 2025. The company wanted to switch from gas to green hydrogen but ditched plans citing high costs and logistic challenges. REUTERS/Thilo Schmuelgen