Just got two or three interesting items on Hydrogen. I want a replacement no bloody exhaust fumes H replacement drive for offshore Fishing so yanmar moves are more than interesting.   A little bigger than my little boats needs still
Attachment 169825  Link
I have put my money where my mouth is with a few investments lately. My little bits in WA, US and Canadian companies was diversified to a EFT which is  a big basket of companies. 
Canberra has the first public H refueling station, the 20 Korean cars about to be delivered are also about to be made available to us plebs if you have very deep products for 2nd gen technology. A race is starting between some car companies in the secotor "20 Hyundai Nexo SUVs sat in Sydney storage for months and the installation of the refuelling infrastructure stalled during the COVID pandemic, the station is finally up and running, setting a zero-emissions transport agenda that Victoria is racing to match next week when Toyota finally opens its refuelling station in Altona
" Link
At an even bigger scale by the end of the year is this one soon too be multiples.
110-m by 11.45-m inland container vessel 
Maas will be 100% powered by hydrogen at the end of 2021. It will be retrofitted at the Holland Shipyards Group’s yard in Hardinxveld throughout Q3 2021. When service resumes, 
Maas will continue shipping container cargo between Rotterdam and Antwerp.
Link  
https://dvzpv6x5302g1.cloudfront.net...MSC_Maas_1.jpg
Proof of cheap emission free or even carbon negative Hydrogen production is required. Happily that is in very advanced position in WA in particular. Proof of costs (R.O.I.) is required to make this change a smile and profitable  event rather than painful. 
I think I have mentioned the 1900-1910 disruptive technological change Haber- Bosch. Still stunned by its impacts from war to sustaining and enabling the 6 times plus world population growth. 
The changes coming seem to be possibly as revolutionary as that event to me. Hope the war enabling side is not the same and do not want to see another 6x population growth :)