Chapter 3: RETRACTED: Environmental Impacts and Sustainability of Hydrogen Energy

Retraction Notice: The publisher wishes to retract the chapter Dev Kumar Mandal, Brijlal Mallik, Shivangi Kashyap, Vivek Hamal, Krishnendu Ghosh, 2026. “Environmental Impacts and Sustainability of Hydrogen Energy”, Green Technology and the Circular Economy: Towards a Sustainable Future, Krishn Awatar Goyal, R. Sivasamy, Teena Mertiya. It has come to our attention from the authors that this chapter was also published in another book by the same authors: Dev Kumar Mandal, Brijlal Mallik, Michael L. Johns, Shivangi Kashyap, Vivek Hamal and Krishnendu Ghosh (2026) “Environmental Impacts and Sustainability of Hydrogen Energy”, Hydrogen Energy Systems: Advancing Sustainable Power Solutions, Krishan Arora (Ed.), Himanshu Sharma (Ed.), Suman Lata Tripathi (Ed.), Sandesh S. Chougule (Ed.). The Emerald Publishing’s submission guidelines make it clear that chapters must be original and not infringe any existing copyright. The publisher sincerely apologizes to the readers. The authors would like to note that they agree with the retraction.

The global shift to a low-carbon economy is vital for fighting climate change and reducing greenhouse gas emissions. This metamorphosis entails establishing clean energy systems that can replace fossil fuels. Here, hydrogen has drawn much attention. Seen as a clean, flexible energy carrier, it is potent in many sectors and pathways. Yet, it is very much in the early days of a nomad’s tent in this low-carbon transformation.

Decarbonization in many hard-to-abate sectors—namely, heavy industry (steel, cement, and chemical manufacturing), and long-distance transport (trucks, trains, ships, and aircraft)—is accomplished through the conversion to hydrogen-based power systems. Hurdles remain, like the high current cost of green hydrogen and the need for infrastructure that can effectively store, move, and integrate the gas into a reimagined electricity grid.

This research aims to investigate the methods of producing fuels and hydrogen power systems, focusing on hydrogen power technologies and how and where to store them. The authors concentrate on the advancements made recently in using electrolyzers to produce green hydrogen. The authors evaluated current hydrogen storage solutions, including compressed, liquid, and solid-state storage options, and appraised the suitability of each for large-scale implementation to meet future demands for hydrogen storage. This research also investigates hydrogen systems for their potential to be integrated into the current energy infrastructure and studies the obstacles to their uptake.