New sales of petrol and diesel cars will be banned by 2040 in the UK, which has since been joined by France. Sweden and Scotland will impose the ban by 2032, and Norway by 2025. Coupled with increasing concern over the carcinogenic effects of diesel emissions, the Volkswagen defeat device scandal, and the link between diesel particulates and Alzheimer’s, focus has turned again to electric cars.
There is still much debate about the long-term environmental benefits of electrically powered cars. What fuel mix will the power stations that generate the electricity be using, for example, and what are the implications for the environment of widespread battery production and disposal? Nevertheless, the key message in the Clean Air Plan is the need for an improvement in air quality for the benefit of human health and therefore the removal of petrol and diesel cars from built up areas. It is not an academic argument on the holistic environmental impact.
The electric car actually predates the use of the internal combustion engine in vehicles. Electric vehicles were popular until their complete decline in the 1930s due to cheaper petroleum fuelled cars such as the Model T Ford. Nevertheless, battery technology has now reached a point where it could be a viable alternative to the use of fuels.