Renewable energy has come a long way in the last decade, but efficiency, costs and emissions are still a serious issue. Hydrogen is underated, but unfortunately extraction processes particularly using fossil fuels is no less green that burning diesel in gensets to produce energy. Yes, there are carbon emission collectors, but again these are expensive and not commonly used around the globe. Already the cost of fossil fuels is the basis of H2 extraction costs. H2 is hugely abundant in seawater, and some companies are extracting using catalysts, but again not so green. Emissions are generally carbon monoxides and dioxides, and nitrous oxides, whereas, burning H2 emits only vapour.
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