In the excitement over electric vehicles, hydrogen and other 'hot' topics in decarbonisation, it can be easy to overlook the role that biofuels have played in replacing fossil fuel usage. Not without controversy of course, the political and perceptual fortunes of the sector have varied over both time and geography. 

In this episode we talk to Ryan Lamberg, an alternative fuels and transportation consultant who has worked as a sustainability and technical consultant with the National Biodiesel Board (a trade association of U.S. Biomass based diesel producers) for over a decade.

In a fascinating discussion, we talk about sustainability, scale, competition and various other issues - in particular based on the US experience in this still-important sector.

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