One of the common ways to capture wave energy, is via a point-absorber which harvests energy from the up and down movement of waves. Australia's RMIT has designed a point-absorber with a novel counter-rotating dual turbine. The design can apparently deliver twice the efficiency of other currently available point-absorber wave technologies. https://www.rmit.edu.au/news/all-news/2021/aug/wave-energy-technology
Electrolysis is the process of using electricity to split water into hydrogen and oxygen. Currently, precious metals tend to provide the catalytic materials needed for the process. These metals are scarce & expensive. But researchers in Australia have identified a new option, made of cheaper more readily available minerals, which also reacts more quickly. https://www.aumanufacturing.com.au/curtin-team-claims-cheap-efficient-catalyst-for-green-hydrogen-production
A synthetic non-toxic compound called 3-NOP has been found to take effect immediately, break down safely in a cow’s normal digestive system and have no lasting effects, despite reducing burp and fart emissions by at least 30% (and as much as 90% in some trials in Australia). Given an average herd size of about 300 cows, using this additive could remove the equivalent of 100 family-sized cars from the roads, per dairy farm, per year. Trials continue in NZ and Australia.Minimizing methane from cattle | DSM
Maersk plans to run a small container ship on e-methanol as early as 2023. 10,000 tonnes of carbon neutral methanol will be produced using solar powered electrolysis (to get the Hydrogen molecules) plus biogenic CO2 - extracted from biomass by rotting, combustion or other processing. Biogenic CO2 is considered "carbon neutral" if when accounting for the living plant absorbing CO2 whilst alive and releasing it when dead, there has been no net
increase in greenhouse gas (GHG) emissions on a life-cycle basis. https://www.maersk.com/news/articles/2021/08/18/maersk-secures-green-e-methanol
