On Sep 20, 7:03*am, dave wrote:
RHF wrote:

As big as NYC, Tokyo, Shanghai etc etc or any of our
Man-Make Mega-Cities are I don't recall an Air Traffic
having to be diverted around them due to their Pullution :
As was the recent case of the Islanic Volcano

How long did that go on?

Once again, RHF misses the point and uses a false point of comparison
to state his case. If you're going to compare coconuts with sewing
machines, you need to find the common factor.