The two words “hydrogen” and “easy” dont go well together. Whoever has ever laid hands on hydrogen knows that its a bitch to handle. It permeates pretty much everything rendering it brittle, its very explosive and can produce toxic materials. Plus, its real hard to liquefy. But there is a better way. Take the bicarbonate from the seawater, filter out the Carbon, and use it in order to combine hydrogen and carbon to form methane. Presto – renewable methane. Easy to handle, easy to store.
Hydrogen is seen as an important factor in energy transition and tackling climate change challenges and meeting the Paris climate agreement goals.