Charles Keeling
illconsidered | March 25, 2006This is just one of dozens of responses to common climate change denial arguments, which can all be found at How to Talk to a Climate Sceptic.
Objection:
CO2 levels are recorded on top of Mauna Loa...a VOLCANO!! No wonder the levels are so high.
Answer:
Yes, it's true, Mauna Loa is an active volcano. In fact it's the biggest volcano on earth! So, should we suppose that Charles Keeling didn't know that? Well, no, he did know this. And using subtle scientific indicators like "wind direction" he was even able to ensure that his readings were not contaminated by any out gassing when it was…