The author forgot to mention, that cobalt plays a vital role in catalysing the removal of sulphur from oil, so not only 'green' energy relies on cobalt mining.
Even when the electricity is generated by fossil sources, the lifetime impact of an electric vehicle is smaller than a conventional vehicle: https://www.carbonbrief.org/factcheck-how-electric-vehicles-...
Cobalt use in lithium-ion batteries is falling: https://www.teslarati.com/tesla-model-3-batteries-cobalt-vol...
Ironically however what I feel the case is being made for is not his 'all of the above' energy policy- that doesn't follow from the facts. It supports investment in nuclear energy and decreased consumption.