The effect on wellbeing of exposure to nitrogen dioxide, a gas mostly produced in diesel fumes, is comparable to the toll from losing a job, ending a relationship or the death of a partner, research suggests.
I’m perfectly willing to run with the idea that NoX is dangerous, that the concentrations in cities are more so and even that diesels are a major source in cities. But that’s not the same as being willing to agree to that dreck:
The largest human source of nitrous oxide emissions is from agriculture which accounts for 67%
Fossil fuel combustion and industrial processes are an important source of nitrous oxide emissions. These two combined are responsible for 10% of human emissions which equals 700,000 tonnes of nitrous oxide per year
A substantial amount of nitrous oxide is caused by biomass burning, which accounts for 10% of human-caused emissions.
Atmospheric deposition is another substantial human source of nitrous oxide emissions. Human activities release nitrogen compounds into the air which eventually falls back down to the Earth’s surface.
As with animal waste, human waste is a significant source of nitrous oxide emissions. Sewage plants and septic tanks are used to store and treat wastewater. Many of these systems create conditions that are favorable for nitrous oxide producing bacteria. Human sewage produces 3% of human emissions
Apart from being created by human activities, nitrous oxide is also released into the atmosphere by natural processes. The Earth’s soil, oceans and atmosphere are all natural sources of nitrous oxide emissions.
Human sources of nitrous oxide are smaller than natural emissions but they upset the balance in the nitrogen cycle that existed before the Industrial Revolution.
So, those wood burning stoves contribute. Fossil fuels, overall, are a minor addition to other human caused sources, the human caused being smaller than the natural. And nowhere is diesel particularly called out as a source.
My source for this?
Source: IPCC Fourth Assessment Report: Climate Change 2007, Intergovernmental Panel on Climate Change.
So, now what we’ve got to do is go back through all this shite talking about diesels and tease out what is their specific contribution to the problem. We need rather more than just they produce NoX, there’s a lot of it about. We need to know how much of that a lot is down to this one source.
Anyone know of any studies that actually do this?