A detailed comparison between the velocities of neutral and ionized hydrogen is of interest in itself, and the comparison has the added advantage that the HII component can be taken as an ...

A comparison of production process for the "blue" and "green" types of hydrogen.(Supplied: Woodside)Both these methods are high in emissions - it takes more energy to transform the fossil fuels ...

Hydrogen vehicles have a different set of environmental challenges. Hydrogen production can be carbon-intensive, especially if derived from natural gas through steam methane reforming.

The use of color-coded terminology to describe hydrogen types (green, blue, and grey hydrogen, etc.) became a popular method to distinguish new technologies and processes throughout 2022 and 2023.

Only a tiny percentage of hydrogen produced today is green; in fact, all low-carbon types of hydrogen (that includes blue, pink, yellow, turquoise, and aqua) account for less than 1% of global totals.