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Hydrogen could become a major asset in the fight against climate change, cutting CO2 emissions by 20% between now and 2050, according to a McKinsey study for the Hydrogen Council, a consortium bringing together the main companies operating in the sector. The prospects opened up by “Hydrogen scaling up” (the title of the study) make the energy source a highly credible alternative to fossil fuels and a substantial addition to existing renewables: in less than 25 years, hydrogen could account for 18% of global energy consumption and reduce CO2 emissions from current levels by some 6 gigatonnes. The impact would also be economic, with hydrogen generating $2,500 billion in revenue and creating more than 30 million jobs.

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