Hydrogen and its competitors, 2004

Risø Energy Report 3Hydrogen - Environmental and safety aspects 576Hydrogen – Environmental and safetyaspectsOn the face of it hydrogen seems to have low impact onthe environment, but there are a number of uncertaintiesconcerning the consequences of a large-scale shifttowards a hydrogen economy.Likewise hydrogen is probably no more hazardous thanconventional fuels, but because of the many propertiesthat make hydrogen distinct from conventional fuels, itis necessary to deal with the risk assessments for all theelements in the use and supply chain of hydrogen.These fields are discussed in this chapter.