I call this a holiday. Not in Goa. 

Why do we imagine that the air is different elsewhere, from where we are used to?

Is it true?

Is it because the number of population is different thus, releasing a different amount of carbon dioxide or the number of cars are different thus, releasing a different amount of carbon monoxide?

And trees are more there than here, and factories are less here than there.

Was there a time at all that air was exactly the same everywhere?

They say, change is sometimes for the best.