Tyre-makers are under pressure to almost literally reinvent the wheel as regulators turn their scrutiny to tyre pollution that is set to surge with the rise of electric vehicles (EVs) and threatens to undermine those cars' green credentials.
"It's not quite a perfect storm," said Gunnlaugur "G" Erlendsson, CEO of UK-based startup Enso, which has developed more durable tyres specifically for EVs and rents out tyres that it takes back to recycle at the end of life. "But it's close."Emerging research is showing the toxicity of tyres, which on average contain about 200 components and chemicals, often derived from crude oil.
Compounding those challenges, manufacturers will need to develop tyres that emit less for heavy EVs, which Michelin and Goodyear have reported can wear out tyres up to 50% faster. Asked about Euro 7 regulations, Michelin said it wants worldwide standards to squeeze the higher emitting tyres, which are usually cheaper, out of the market. Continental advocates a global abrasion standard with transparent labelling for consumers.
"It's our responsibility to take care of this and to find a solution" to 6PPD, said Thomas Kramer, Continental's head of material wear.Developed during the Korean War, research shows that when 6PPD reacts with oxygen or ozone it forms 6PPD-quinone, which has been blamed for mass deaths of Coho salmon off the U.S. West Coast.
Enso's CEO Erlendsson said the industry could have a solution on the market within five years if pushed, though at a price.are working on Euro 7 regulations to curb emissions from brakes and tyres. EU lawmakers say they could be agreed on as soon as next year.
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