The impact of road-tire wear: a hidden source of airborne microplastics and black carbon

The impact of road-tire wear: a hidden source of airborne microplastics and black carbon

Recent studies conducted in the Colorado Rocky Mountains reveal that tire particles, laden with nano-sized carbon black, are being deposited on high-altitude snow, contributing to accelerated melting and atmospheric warming. Analysis by Emissions Analytics identified organic compounds in these particles that match those found in road tires, highlighting their widespread environmental presence.

Emissions experts call for reform of car taxation to be based on a combination of weight and mileage

·       Simpler car tax system proposed, based on vehicle weight and miles travelled

·       Would apply the ‘polluter pays’ principle

·       Switching to 150 kg lighter car or driving 1,000 fewer miles will save £100 a year 

·       Experts call current VED system ‘a mish-mash of incentives and penalties’

Cars should be taxed on a combination of weight and mileage, according to a radical new study from emissions experts Nick Molden and Felix Leach.

Molden, who is the CEO of emissions testing company, Emissions Analytics, and Leach, Associate Professor of Engineering Science at the University of Oxford, will be launching their new book: Critical Mass: The One Thing You Need to Know About Green Cars at Keble College, Oxford, on November 25th and Imperial College, London, on December 2nd. The events will outline proposals for a simpler, more environmentally-credible road tax system.

The launch of the book will be hosted by Chief Executive of the RAC Foundation and former Director General at the Department for Transport, Steve Gooding, and Professor Gautam Kalghatgi, until recently Visiting Professor at the University of Oxford.

The book outlines in with brutal clarity that the current system for Vehicle Excise Duty (VED) is flawed, even calling it a ‘mishmash of incentives and penalties’.

The result is a powerful evidence-based thinking that has the basis to overcome bitter factional disputes between different groups trying to promote one powertrain over another. Former Secretary of State for the Environment and Deputy Prime Minister, Michael Heseltine, said: “I welcome this contribution to the most important challenge of our time.”

It is a timely release. Next year the so called ‘road tax’ will undergo a major overhaul and it will include Electric Vehicles (EVs) that are currently exempt from VED.

Starting April 1st, 2025, EVs will lose their VED exemption, however. That means buyers of new EVs will have to pay the next lowest first-year tax rate, which currently stands at £10. Once an EV hits its second year on the road, owners will be required to pay the standard VED rate, which is currently £190 and is expected to increase with inflation from April 2025.

The new legislation will also hit buyers of EVs costing over £40k with additional tax and used EV buyers and hybrid buyers will also have to pay more.

But Molden and Leach say there is a solution that is not only better for the environment, but simpler to administer and much easier to understand. 

Molden explained: “Taxing a car on a combination of its weight and mileage offers a simple, potentially universal approach to pricing-in the environmental impact of cars while at the same time overcoming the objections to the current mish-mash of incentives and penalties.

“In our book, we offer an intuitive ‘proof’ of why mass and distance are fundamental to designing a system to incentivise the purchase of ever-greener cars and this is contrasted with other flawed bases for judging environmental impact, such as measures of vehicle efficiency, including energy and fuel efficiency, as well as elements incorporated in the current system such as fuel type and laboratory carbon dioxide emissions.”

The two experts outline ways in which the system can be adopted and show the types of cars likely to taxed lightly and those that will be more expensive to keep on the road. Broadly, smaller cars will be cheaper to tax.

Under Molden and Leach’s proposed system (taking the example of the UK) if an average car is 150 kg lighter or does 1,000 fewer miles, the owner would pay £100 less per year.

“Specific tax rates are proposed and compared to existing taxes to illustrate winners and losers – winners being small city cars and loser including high-mileage heavy cars and SUVs,” explained Leach. “The concept proposed is a reliable revenue-raiser at a time of widespread fiscal pressure and declining vehicle taxation. It could also be adopted rapidly and transitioning to it is easy.”

The idea of taxing a car on the basis of its weight and miles travelled, also translates easily for a car-buying public that has to negotiate confusing rates and inconsistencies, while car makers have increased the size and weight of their models with impunity.

Molden added that deploying a single measure of a car’s environmental credentials to guide purchases and government policy is the way forward, and the measure that takes account of approximately three-quarters of the environmental impact of a car is the car’s weight, and that metric correlates well with environmental damage.

Molden added: “Most people want to do the right thing environmentally when they are buying a car, but the information and choices are now too complex for any normal consumer to understand fully. The question was whether there is a simple, practical way to point the car buyer in the right environmental direction and allow governments to tax and subsidise the right things – and there is.”

 

Ends

Notes to editors:
Nick Molden is the Chief Executive Officer of Emissions Analytics (https://www.emissionsanalytics.com) and a Honorary Senior Research Fellow at Imperial College London
Felix Leach is Associate Professor of Engineering Science at the University of Oxford (https://eng.ox.ac.uk/people/felix-leach/)

Critical Mass: One Thing You Need to Know about Green Cars is now available in hard copy and as an ebook. To obtain a copy go to: https://www.sae.org/publications/books/content/r-575/ or https://amzn.eu/d/2FrpYUH.

To apply for tickets to the launch events, please email info@emissionsanalytics.com.



 

Why you should be interested in tyres

Why you should be interested in tyres

A surprisingly compelling subject
Dinner table, or social media, conversation may centre on arguments over which football team deserves to win the league, or whether the Mustang or Camaro is better, but the common feature of such polemics is that they represent simple and interesting questions. The topic of tyres, however, and if you dare raise it, may stun your companions into silence. Tyres are not simple and interesting. They are complex and boring – at least on the outside.

Webinar: Tyre emissions from the latest electric vehicles

Webinar: Tyre emissions from the latest electric vehicles

Our CEO & Founder, Nick Molden presented a webinar on the tyre emissions from the latest electric vehicles on 19th September 2023. The world is on a path to electrifying everything that moves, primarily driven by the desire to decarbonise. But no vehicle is zero emission, and the latest emissions regulations in Europe, the US and beyond are now starting to incorporate non-exhaust emissions.

FUD off

FUD off

Fear, uncertainty and doubt in an age of decarbonisation
Fear. Uncertainty. Doubt.  This rhetorical triptych is increasingly used as an insult to describe interventions from anyone who deviates from the current environmental orthodoxy.  When French philosopher René Descartes sat down in the seventeenth century Netherlands to write his Discourse on Method, he also faced FUD.  

Emissions Analytics and the University of Portsmouth collaborate on the study to investigate impact of toxic tyre chemicals in UK waters

Emissions Analytics and the University of Portsmouth collaborate on the study to investigate impact of toxic tyre chemicals in UK waters

Emissions Analytics is thrilled to be featured in a groundbreaking news article by the University of Portsmouth. The article, titled "Study to Investigate Impact of Toxic Tyre Chemicals in UK Waters," sheds light on a crucial research endeavor that aims to understand the environmental consequences of tyre chemical pollutants.

Don't try this at home!

Don't try this at home!

Increasingly simplistic calls to #Stopburningstuff and #Stickyourselftothings have recently been accompanied by another call: that anyone who challenges the virtues of battery electric vehicles (BEVs) should shut themselves in their garage alongside their idling internal combustion engine (ICE) vehicle for an hour, to see whether they emerge to tell the tale.

What matters is not the promise of electric vehicles but the actuality

What matters is not the promise of electric vehicles but the actuality

Friday 18 September 2015 saw Dieselgate break.  This was the culmination of a growing dissonance between real-world nitrogen oxide (NOx) emissions and official values for cars and vans.  The rupture was created by governments picking a technology, for the purposes of decarbonisation, where too much was taken on trust within a fragile governance system.

AIR welcomes the publication of a standardised method to collect vehicle interior air quality data

AIR welcomes the publication of a standardised method to collect vehicle interior air quality data

 The AIR Alliance (Allow Independent Road-testing), the independent alliance set up to improve air quality by promoting independent, on-road vehicle emissions testing, welcomes the publication of the CEN workshop agreement CWA 17934, the real drive test method for collecting vehicle interior air quality data.

Champagne Supernova?

Champagne Supernova?

When an exploding star led to the observation of supernova SN 2003fg in 2003, it was nicknamed the ‘Champagne Supernova’ due to its unusual brightness, and its inexplicably great mass.  Many supernovae eventually succumb to their own weight, leaving behind a black hole.  Are we at this stage with battery electric vehicles (BEVs)?