Stuart21 - What is your Mauna Kea data that shows an increase in CO2 from "the normal man made" sources recording?  ...the increased CO2 from Hilo, HI?

The point being is that all that is measured is the CO2 level, not where the CO2 originated from.  A single local measurement tells nothing but a local level at a particular time.  Perhaps you take a more sophisticated approach to the complex fluid dynamics problem that is our atmosphere.  Don't feel bad if it is overwhelming, no one has accurately modeled it yet.

BTW - I was in Subic Bay the day Pinatubo blew all those years ago.  The initial eruption 30miles distant looked like a nuclear explosion.  A Typhoon blew the debris over us the next day.  It was pitch black at noon, except when lightening lit up the sky.  It was raining rock (pumice), earthquakes, looked like hell on earth.  Our ship manned fire hoses topside 24hrs during the event to prevent capsizing from the added weight.  Witnessing such an event puts into perspective just how little and insignificant we humans are.  But as a young sailor I found the whole Volphoonaquake a pretty awesome experience - especially because the local bars, the couple that were still standing or able to move outside, used dry ice to cool the beer (electrical grid was toast).  Nothing makes a San Miguel or Red Horse more palatable than slamming it ice cold!