This event, to be staged under the auspices of the "United Nations Environment Program" (UNEP) headed by Professor Klaus Topfer, will be organized for the second time by the technology group and leading gas producer Linde AG. 

The German Minister for Economic Affairs, Wolfgang Clement, will explain the federal government's position and activities surrounding the theme of the event, "sustainable mobility & hydrogen". 

The European Commission, Japan's Ministry of Economy, Technology and Industry (METI), the US Department of Energy, as well as the International Energy Agency (IEA) will all be sending other high-ranking guest speakers. At the "International Hydrogen Day", Linde will present a new study into the costs of a Europe-wide hydrogen infrastructure, which will demonstrate ways to achieve a mobile hydrogen society. 

Dr. Wolfgang Reitzle, President and CEO of Linde AG: "It is high time that we stop merely postulating about hydrogen as the energy source of the future, and begin taking real steps. This will require a broad coalition of responsibility." 

Professor Klaus Topfer, Executive Director of UNEP, comments on "International Hydrogen Day": "In a world facing growing environmental problems and diminishing oil reserves, hydrogen is one of the most likely long-term options, especially for transportation." 

Linde AG, with around 41,000 employees worldwide, generates annual revenues of nearly 9 billion, and is the largest builder of hydrogen production facilities in the world. 

The company equips virtually all existing liquid hydrogen filling stations, operates Germany's sole hydrogen liquefaction plant, and is a leader in hydrogen refueling technology.