In the city of Seattle, for example, every year, companies over a certain number of employees are required to participate in an annual transportation survey. The employees are surveyed. The questions ask how far the employee commutes to work, how long it takes, and by what method (private vehicle, car pool, public transportation), how many days a year they work from home, or take off, etc. The effort is to assess the impact on environment, parking infrastructure, public transportation, roads, etc.
Obviously, there isn’t a 100% response rate so the data is extrapolated from the responses to the total number of employees employeed at that site (probably why they only poll companies of a minimum size and larger).
If they wanted to implement something like this in seattle, then the next step would be to take the data they already have and start sending those companies a new bill for a new annual tax based on the assessment.
Lots of taxes work off of an estimated assessment rather than having to account for every nut snd bolt of the thing (property taxes, for example).
So how do you do it? That’s how you do it. This isn’t rocket science, and you don’t need to invent new accounting methods or worry about the accounting-sky falling to accomplish it.
Regarding commuting specifically I meant how do you determine the cost of each extra pound of co2 in the atmosphere. It’s inherently incalculable because the effects of climate change are insanely complex. That’s my point about externalities. How do you price the value of standing in an open meadow at dusk?
The point of my earlier comment was that the inability to account down to the last carbon atom isn’t a valid reason not to start with more generalized high-level estimates and work just from those until/if a better way of doing it is either becomes available or becomes a necessity.
It’s like arguing that we might as well not accept the existence of circles because we can’t calculate to the final digit of pi…when really, for most things, we don’t need that level of precision to still do a good job discussing roundness.
Pi can be rounded. It’s infamously difficult to compute externalities in any meaningful sense. Even more difficult to implement a fair and actionable policy for it. You can google “accounting for externalities” and read a bunch f articles and academic papers on the subject, which has been debated for decades.
Beyond fines for dumping chemicals in rivers, and carbon taxes, etc, stronger EPA, etc, I don’t really have any good ideas for codifying a real actual plan into law. Probably easier to raise corporate tax rates up a few points from 21% to whatever and use it to fund green energy and cleanup projects etc, rather than change accounting methods to try and capture the costs that way.
