So, digging up dirty old decaying fish causes massive coastland and marine pollution. Would bioethanol from corn be better ?
https://blogs.ft.com/energy-source/2010/06/14/is-bps-oil-spill-an-opportunity-for-the-ethanol-lobby/
Not really. First there’s the amount of land required to grow all that corn to burn in all those tanks (see diagram at top of page).