Pretty much everything has emission requirements on them now- so why should diesels get a mulligan?
-DEF is not required- it's just the current technology that meets the requirements- so by that measure, it makes it a virtual requirement. Again, find a better solution, be set for life.
- air quality is not the color of the sky, nor should it be looked at as a local area is great that everyone is good. Maybe the air in mountain and country areas is good enough, but it's not in many major cities around this country.
30 years ago, I was almost hired at the EPA, and from what I understand, it was to work on power equipment- mowers, trimmers, chippers, etc. This stuff has been looked at and worked on for decades. Just like there's a requirement for shipping on the opposite end of the engine size spectrum.
Again, if you really think that we should be scaling back emissions requirements, because of data, PLEASE present that to the EPA- they are required to take that as an input for future work. Which is to say, there's a 100% chance that what you posted was considered, debated, and worked with. Doing that is required by law for them. Seeing how things have changed since the late 90's in terms of requirements should give you an idea the impact of that paper.
Heck, your ideal statement is actually part of the law that the EPA is required to follow for regulations- they have to measure the cost of the improvements to the amount of people it will help.
For the other ways of dying- why do people thing this is an either/or question? Do you really think that those other ways of dying are not being considered overall???? Just because it's not in the realm of the EPA (which none of them are) does not mean they are being ignored.
I appreciate that people are frustrated with the new laws and regulations- but instead of just bitching about it on a small internet message board- get involved. I could have spend the last 30 years being part of the fight against new laws, but I chose to work within the system, so my paycheck is very much on how clean I can make a car for as little money as possible- emissions are my technical specialty. 25 years ago, the entire auto industry figured out that it was better to be part of the process than constantly fighting it- while we are still tasked with some very difficult challenges, they are not just random changes without input.