https://en.wikipedia.org/wiki/Hydrogen_fuel

Combustion engines in commercial ... to run on a hydrogen-diesel mix in the UK,  ...

https://en.wikipedia.org/wiki/Hydrogen_internal_combustion_engine_vehicle

A hydrogen internal combustion engine vehicle (HICEV) is a type of hydrogen vehicle using an internal combustion engine. Hydrogen internal combustion ...

https://www.renewableenergyworld.com/hydrogen/tech.html

Read the basic technology of hydrogen energy and fuel cells and how it is used ... fuel cells power the shuttle's electrical systems, producing a clean byproduct ...

https://www.quora.com/What-is-the-product-of-burning-hydrogen-gas

In a flame of pure hydrogen gas, burning in air, the hydrogen (H2) ... hydrogen gas in the presence of air only, then what is the byproduct of this ...

https://www.anl.gov/article/six-things-you-might-not-know-about-hydrogen

Oct 7, 2016 ... When hydrogen is the fuel, the only byproduct is water — unlike our common combustion engines, which can create harmful byproducts like ...

https://www.technologyreview.com/s/401988/a-pollution-free-hydrogen-economy-not-so-soon/

Jul 11, 2003 ... Electric cars powered by hydrogen fuel cells don't produce ... that produce hydrogen-by burning the fossil fuels coal, oil, and natural gas.

https://www1.eere.energy.gov/hydrogenandfuelcells/tech_validation/pdfs/fcm03r0.pdf

The small number of vehicles using hydrogen internal combustion engines (HICE ) makes it difficult to explain how to repair them. Therefore, this section does ...

http://www.airproducts.com/Industries/Energy/Power/Power-Generation/hydrogen-basics.aspx

In vehicles, hydrogen can be used as a fuel in two ways: to produce ... Unlike carbon-based fuels, hydrogen produces no harmful by-products upon combustion.

https://www.hydrogenics.com/technology-resources/hydrogen-technology/fuel-cells/

This is a big improvement over internal combustion engines, coal burning power plants, and nuclear power plants, all of which produce harmful by-products.

https://sciencing.com/created-hydrogen-burns-5247283.html

What hydrogen releases upon burning depends on its environment and the type of ... to that of fossil fuels, and hydrogen's main by-product, water, is harmless. The most difficult steps in tapping hydrogen as a fuel are finding it in its pure form  ...