These yachts are highly popular with the ‘super-bourgeoisie’ – and getting bigger. Can anything be done to stop them destroying our seas?

Who knew? Apparently everyone did, apart from me: you don’t wear shoes on a superyacht. Now, about to step on to my first teak deck at the Monaco Yacht Show, I’ve got to take my trainers off, and I’m having a sock panic. Have they got holes? Do they even match? Do they smell?

To be honest, I’ve come dressed all wrong for Europe’s big annual superyacht trade exhibition. The code for men seems to be crisp and tucked in, blazers and chinos, navy and white, sculpted hair and designer sunnies. (I went colourful, loose, casual). For women, it’s something like Riviera elegance. Everyone – whether they’re Italian, French, English, German, American, exhibitors, buyers, brokers, charterers – seems to know each other. The international superyacht community seems to be a close-knit one, and I’m not part of it. Yet.

Mines in supply chains of western carmakers linked to widespread deforestation of primary rainforest in nickel-rich lands inhabited by Tolaki people in Indonesia

Volkswagen, Ford and Tesla are among the electric carmakers whose batteries may contain nickel mined in indigenous woodlands plagued by deforestation, an analysis has found, highlighting the struggle to make vehicles that are free from environmental destruction.

Corporate disclosures and trade flows from the last two years show mines in the battery supply chains of automotive giants are linked to the loss of trees in Sulawesi, a wildlife hotspot in Indonesia that houses the world’s largest nickel deposits. The metal is widely used in cathodes in car batteries because it boosts energy density and increases range.