40% of global ship traffic is simply moving fossil fuels around! Renewables make much of this traffic obsolete
The issue is, that renewable energy requires a lot of rare earth metals. This bring a whole bunch of other issues. Politically and ethically. "In a perfect world it would be… " there is no perfect world. Humans never change.

not just that but that’s millions of jobs worldwide lost.

had we started moving to renewables 40 years ago, like we should have, the impact wouldn’t be as bad now.

IEA: Slow energy transition would cost millions of jobs

A rapid transition would create enough new green roles to more than offset job losses in coal mines, power plants and oil and gas fields, a report finds

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