When the European Union recently announced large-scale hydrogen production plans as part of its green energy future, many in the solar, wind, and natural gas industry rejoiced. But there is also an emerging avenue for hydrogen production and its rubbish. Literally. Hydrogen has already established itself as an inseparable part of the energy world of tomorrow when emissions will, hopefully, be minimal of not completely absent. Yet not all hydrogen is created equal: most of the hydrogen produced in the world today—as much as 95 percent—is produced from natural gas, which compromises its “clean” credentials. The rest is produced through electrolysis, using solar and wind power. While it is theoretically possible to gradually phase out the so-called blue hydrogen, which is the one produced from natural gas, it may well be quite an expensive option. But how about using feedstock that has a negative cost? This is what companies […]