Reply #10: not just them, but the British Antarctic Survey ...

[Lisa]

.... and according to Al Gore in a talk last month, at least one US university had run the numbers through a model and concluded that they must be inaccurate because they didn't fit the projections (which it turned out were based on incorrect assumptions).

BUT -- once scientists were on track and policymakers got serious, it took less than 2 years to go from the confirmation of the "hole" to the Montreal Protocol.