Hi everyone,

Recently a colleague made this observation:   politicians were able to
successfully pass legislation restricting the -- separate -- emissions
that caused acid rain and the destruction of the ozone layer.  And it
didn't take an IPCC like process to convince people.  He was starting
his career at the time of the first problem (acid rain) and
characterized the science as less certain then what we have now for
CO2.  Yet people took solid action.

I have some ideas on what's different now but want to hear your
thoughts first.

Rob Jacob


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