Rio Tinto (RIO) announced that it would invest in Pongamia seed farms in Australia to explore the possibility of using its seed oil as a feedstock for renewable diesel. RIO sees biofuels as an avenue to reduce the dependence on fossil diesel, which accounts for around 10% of its emissions footprint in Australia.To achieve net-zero Scope 1 and 2 carbon emissions by 2050, Rio Tinto has chosen electrification as the long-term solution for replacing the use of diesel in its fleet. While electrification is in pr ...