Provience
Kill!
They make more air every day, which is why I said it's interesting when people cry about ground consolidation yet are happy to burn it.Not trolling.
it assumes a non-closed system or counts on the 'I will be dead before it matters' thought process. The planet is a closed system.
think of it this way - Take a cup of water... add a single grain of salt. No taste because it is dilute.
Keep adding salt. eventually you are gonna taste it, and if you keep adding you will eventually make it undrinkable.
The same with a lot of these theories. Dilution works if you can replace the recipient of the pollutant. Where are you gonna get more air? where are you gonna get more dirt? Eventually it will have diluted to the limit of our ability to cope. Another example if nuclear steam releases... we can measure them thousands of miles off... Harmful? Not really, but we haven't done a lot. If we keep venting it will make a difference ( Pre-nuclear steel anyone?)
Long after you and I are dead it will matter. tomorrow, not so much.
It also may never matter
Problem is, it isn't a closed system.