Tarmac workers watch the plane carrying France's President Emmanuel Macron and his wife, Brigitte Macron, landing at Halim Perdanakusuma International Airport in Jakarta, Indonesia, on May 27, 2025. Ludovic Marin/AFP via Getty Images
A production engineer works at the new ThyssenKrupp Nucera SOEC green hydrogen components pilot plant in Arnstadt, Germany, on May 27, 2025. The plant will produce components for Solid Oxide Electrolyzer Cell technology that will be used for the production of green hydrogen. Steelmaker ThyssenKrupp is investing heavily in a new hydrogen-fired steel mill. Hydrogen-based steel production emits dramatically lower greenhouse gases than coal. Jens Schlueter/Getty Images
