Beware the difference between ‘clean’ and ‘green’ hydrogen

Hydrogen is set to be a crucial part of the energy sector by 2030. It combusts and releases energy without making carbon dioxide, meaning it can be used as an emissions-free source of energy – but research from the Australian National University reminds us that it could have an emissions-intensive future as well. The federal … Continue reading Beware the difference between ‘clean’ and ‘green’ hydrogen

What’s at stake at COP26? Your climate primer

This weekend, world leaders will meet in Glasgow to discuss the acute social, scientific and economic challenge we face. With so much information flying past, it’s easy to lose track of the science and technology. What’s our current trajectory? Could we suck carbon dioxide out of the atmosphere? Why is everyone so interested in hydrogen … Continue reading What’s at stake at COP26? Your climate primer

Has our hydrogen future arrived?

Hydrogen has been discussed as the fuel of the future in recent times, with state and federal governments aiming to see renewable hydrogen at a competitive price by 2030. But some companies – most notably Fortescue Future Industries (FFI), an offshoot of mining giant Fortescue Metals Group – have more ambitious dates in mind. FFI … Continue reading Has our hydrogen future arrived?

Will the Western Green Energy Hub work? | Cosmos Weekly Taster

This article on the Western Green Energy Hub first appeared in Cosmos Weekly on 3 September 2021. For more stories like this, subscribe to Cosmos Weekly. At 15,000 square kilometres, the size of the recently proposed Western Green Energy Hub in Western Australia is hard to fathom. That’s half the size of Belgium – larger … Continue reading Will the Western Green Energy Hub work? | Cosmos Weekly Taster

Making hydrogen with mining waste

A group of Queensland researchers have used mining waste to make a catalyst that could render hydrogen fuel production cheaper and more efficient. Hydrogen gas, which can be made by electrolysing water, should be a critical clean fuel by mid-century. The electrolysis process needs metals to catalyse it – and generally, expensive precious metals do … Continue reading Making hydrogen with mining waste

The biggest engineering challenge

I want you to imagine a highway exclusively devoted to delivering the world’s energy. Each lane is restricted to trucks that carry one of the world’s seven large-scale sources of primary energy: coal, oil, natural gas, nuclear, hydro, solar and wind. Our current energy security comes at a price, the carbon dioxide emissions from the … Continue reading The biggest engineering challenge

Splitting hydrogen just got cheaper

Hydrogen-powered cars may soon become more than just a novelty after a UNSW-led team of scientists demonstrated a much cheaper and sustainable way to create the hydrogen required to power them. In research published in Nature Communications, scientists from UNSW Sydney, Griffith University and Swinburne University of Technology showed that capturing hydrogen by splitting it … Continue reading Splitting hydrogen just got cheaper

Australia’s hydrogen future has arrived

In 1874, science fiction author Jules Verne set out a prescient vision that has inspired governments and entrepreneurs in the 145 years since. In his book The Mysterious Island, Verne wrote of a world where “water will one day be employed as fuel, that hydrogen and oxygen which constitute it, used singly or together, will furnish … Continue reading Australia’s hydrogen future has arrived