Porsche Says Its Synthetic Fuel Could Make Gas-Powered Engines as Clean as EVs

I believe those are better links:

https://newsroom.porsche.com/en/2020/company/porsche-siemens...

https://www.efuel-alliance.eu/en/

eFuels are produced from hydrogen which is extracted from water via electrolysis. The renewable electricity that is required for this process comes from wind and solar power plants. In the Fischer-Tropsch process, hydrogen is synthesised into a liquid fuel through CO2 that’s been taken from the atmosphere (power-to-liquid process).

Thanks to their compatibility with today’s internal combustion engines, eFuels can also power vehicles, airplanes and ships, thus allowing them to continue to operate but in a climate-friendly manner. The same applies to all heating systems that use liquid fuels. Existing transport, distribution and fuel infrastructures (especially filling stations) can also continue to be used.