At last it’s official and there should be no hiding place for the UK in improving its air quality as Court orders UK to cut NO2 air pollution. There is sufficient evidence to suggest that we now know, better than ever, what the causes of poor air quality are and what is needed to do it. Central to that is political will both at the national and local level. Unfortunately, therein lies the issue. Nationally there is reluctance to tell local authorities what to do and the trend has been to incentivise them to do the right thing through the provision of small pots of money to remedy dirty buses or encourage the uptake of electric vehicle charge points. Locally there has been real fear of appearing anti-car. It has meant local authorities have got themselves into a proper tangle with conflicting policies for regeneration and growth overriding policies to promote air quality.
Whilst the announcement is welcome, how convenient for it to come during Purdah such that no politician has been able to step up and take responsibility for the inaction of the current government or previous governments. Yes, this really has been a failing of both Labour and the Conservative / LibDem coalition. Instead a fairly weak comment from DEFRA A spokesperson for the Department for Environment, Food and Rural Affairs (Defra) said: “Air quality has improved significantly in recent years and as this judgement recognises, work is already underway on revised plans (since February 2014) to meet EU targets on NO2 as soon as possible. “It has always been the government’s position to submit these plans before the end of this year. Meeting NO2 limits is a common challenge across Europe with 17 member states exceeding limits.” ClientEarth lawyers recently told a hearing that enforcement by the court was the only “effective remedy” for the UK’s “ongoing breach” of European Union law.
Previous blogs I have suggested what the solution might be. These words were drafted when I worked for the City Council in Sheffield, a city that has a better understanding of its air quality issues than most, but has yet to make any real inroads, despite some great things happening with EVs.
So, what’s the solution and who is charged with delivering it? Well, in truth there is no one solution – it will be a combination of many, many interventions. Every city taking this issue serviously will be looking at a range of options to tackle this problem – and some are easier to introduce than others. To inform those choices, it is important to understand in fine detail the sources of your air quality problem. Locally, we have undertaken an assessment of the vehicles running on Sheffield’s roads and have monitored emissions on key arterial routes to understand the actual (rather than modeled) emissions from passing vehicles. It is helping us to better understand whether all vehicles are equally responsible, or whether we need to target particular fleets (HGVs, buses, taxis, private vehicles, light goods, etc).
Despite all that, the solution is well understood. We need to move away from diesel towards ever increasing cleaner fuels. Increasingly, we see two short-medium term winners – for lighter vehicles electric hybrid and electric plug-in solutions are likely to fair well and, given the improvement in battery technology and capacity the concept of ‘range anxiety’ (that awful fear that you might be left stranded somewhere without a hope of plugging-in) will become a thing of the past. More and more of these lighter vehicles appear to have switched from petrol to diesel in recent years as subsequent UK policy incentivised the uptake of diesel through reduced road tax as a way of reducing carbon emissions. For once, what’s been good for carbon dioxde (and only very marginally) hasn’t been good for local air quality.
For heavier vehicles, electric is less likely to play a significant role for some time to come, the smart money is on the use of gas as an alternative to diesel. Whilst governments across the world are now faced with the prospect of fracking shale gas, provided there is a (more) sustainable solution, such as biogas, this could be a significant player. Of course, the concept of range anxiety still remains, so investment in gas refuelling technology is essential if gas is to see widespread adoption. Networks of gas refuelling stations on key routes on motorways and arterial roads and in depots up and down the country will be needed and public intervention is needed to achieve this.
Across South Yorkshire we have identified a number of key sites for the development of gas refuelling infrastructure and are working with the fleet operators and the industry more generally to begin its development. Over coming weeks and months, I’ll post updates on this important programme of work.
Sustainable Smart Cities 