Britain has announced that it is bringing forward a ban on the sale of all petrol, diesel and hybrid cars to 2035 - five years earlier than had been expected.
Just as the Toyota Corolla hybrid has emerged as the most popular new car in Ireland during January (when more than 30 per cent of all new cars are sold), the pressure is building not just on conventional fossil-fuel cars but on hybrids too. Many people buying hybrids will feel they are playing a part in reducing emissions, but governments are already taking a hard line on them because, ultimately, they too rely on petrol engines to back up the battery, which drives them for part of the time.
In Ireland, it should be noted that the Sustainable Energy Authority is not the biggest fan of hybrid technology for precisely that reason and hybrid buyers are not given the same tax and toll exemption benefits.
Reuters reports that the move in Britain is an attempt to reduce air pollution that could herald the end of over a century of reliance on the internal combustion engine and that the step "amounts to a victory for electric cars that if copied globally could hit the wealth of oil producers, as well as transform the car industry and one of the icons of 20th Century capitalism: the automobile itself."
"We have to deal with our CO2 emissions," Johnson said at a launch event for COP26 at London’s Science Museum yesterday. "As a country and as a society, as a planet, as a species, we must now act."
The British government said that, subject to consultation, it would end the sale of new petrol, diesel and hybrid cars and vans in 2035, or earlier if a faster transition was possible.
Countries and cities around the world have announced plans to crack down on diesel vehicles following the 2015 Volkswagen emissions scandal and the EU is introducing tougher carbon dioxide rules.
The mayors of Paris, Madrid, Mexico City and Athens have said they plan to ban diesel vehicles from city centres by 2025. France is preparing to ban the sale of fossil fuel-powered cars by 2040.
While demand for electric vehicles has surged in Britain, Europe's second-largest market for new vehicles, diesel and petrol models still account for 90% of sales. Prospective buyers of greener models are worried about the limited availability of charging points, the range of certain models and the cost.
The government said last year it was providing an extra 2.5 million pounds to fund the installation of more than 1,000 new charge points for electric vehicles on residential streets.
While some car makers may find it hard to countenance the end of the combustion engine, others have embraced a future in which electric vehicles prevail.
Ford , Volkswagen and Vauxhall are Britain's biggest-selling car manufacturers, according to the Society of Motor Manufacturers and Traders. Tesla, Mitsubishi and BMW produce the top three selling electric cars in Britain.
Although the ban will not come into force for another 15 years, the change will affect decision-making sooner as car makers decide on investments long before a vehicle first rolls off a production line with a model life cycle lasting around seven years.
The ban poses a threat to German jobs as Britain is the biggest export market for its car manufacturers, amounting to about 20% of global sales, and electric cars take less time to build than combustion-engined or hybrid variants.
The two-week COP26 summit is seen as a moment of truth for the 2015 Paris Agreement to combat global warming. Britain has pledged to reach net zero by 2050.