Hydrogen

Researchers have harvested hydrogen from waste plastics using a low-emissions method. They say it not only solves environmental problems, but the value of the graphene by-product could offset the costs of producing hydrogen.

Liquid hydrogen is a giant pain to handle, but it's one of the few technologies with a genuine chance of decarbonizing long-range flight. So it's huge news for clean aviation that H2Fly has now landed the word's first piloted liquid hydrogen flight.

Methane has a greenhouse effect 80 times worse than carbon dioxide over a 20-year period, and emissions are skyrocketing even as we start reducing CO2. That makes UCF's new hydrocarbon-capturing, sunlight-powered catalyst a very compelling idea.

The ingredients in stars are usually pretty evenly mixed throughout, but now astronomers have discovered a bizarre star with two distinct faces, each made of a different element, which defies explanation.

French transport multinational Alstom debuted the world's first hydrogen fuel-cell passenger train back in 2016, which went into service in Germany last year. Now the Coradia iLint is rolling down the track in North America for the first time.

Airbus is looking towards a greener aviation future, revealing major projects to build hydrogen jet airliners with not only a complete hydrogen-fueled propulsion system, but also a hydrogen Auxiliary Power Unit (APU) to generate electricity onboard.

Coal is not thought of as clean fuel, but it might yet have a role to play in the push for greener energy. Researchers say that it could be great for storing hydrogen gas, one of the most promising clean fuel sources currently being explored.

Alpine's street cars might not be known for outrageous design, but this Alpenglow concept would grab its share of eyeballs even parked next to a Delage D12, an Aston Martin Valkyrie and a Bugatti Bolide. Plus, it's noisy. Plus, it's zero-emissions.

EPFL engineers have built and tested a solar reactor that generates hydrogen gas from sunlight and water. The system is not only highly efficient at producing hydrogen, it also captures the “waste” products of oxygen and heat to put them to use too.

H2Fly has successfully tested the ground-based cryogenic fuel filling procedure that'll power groundbreaking liquid hydrogen aircraft flights in the coming months. Liquid H2 will be an absolute game-changer, allowing clean long-distance air travel.

Green hydrogen can't be viewed as environmentally friendly if it drinks huge amounts of fresh water, or results in the bulk output of toxic chlorine, according to RMIT researchers who say they've come up with a cheap technique that does neither.

The state that built the world's first grid-level "big battery" is striking out on an even more ambitious green energy project: the world's biggest hydrogen power station, fed by an electrolysis facility 10 times larger than anything running today.