The mitigation of global warming is being addressed in all corners of the globe. Country leaders are driving sustainable economic growth with net-zero commitments and development of interim climate action plans, accompanied by the formulation of national hydrogen strategies.
Realising an energy transition on the scale required will be a decades long challenge. We cannot immediately stop doing the things today that emit carbon dioxide and our global population is growing which will inevitably lead to greater consumption. We need to change our industrial make-up without increasing our carbon dioxide (CO2) emissions and we need to build this new industrial landscape quickly.
To date, the role of clean hydrogen technologies in supporting the transition has been a topic of considerable debate, and more recently the conversation has extended to ensuring that critical materials are used as efficiently as possible as we deploy the technologies which will make the transition possible.
If hydrogen is to serve net-zero aims, it must be produced in a sustainable way which emits as little CO2 as possible. Blue and green hydrogen are expected to be the dominant forms of hydrogen employed in decarbonisation efforts to 2050, with the proportions of each varying by region, depending on local resources and incentive structures. The scale of the global clean energy requirements mean substantial quantities of both will be needed.
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