Francis Foster

He's retired now, but it's something that he always said to me that one day this will be possible, and it's actually the most terrifying weapon that human beings will ever have come up with.

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What you're saying is there have been times in the history of this planet when there's been hundreds of times more carbon dioxide in the atmosphere than there is today.

On the one hand, you say it's not commensurate with the science.

On the other hand, you're the only scientist who's been saying this for a long time.

How do you explain that?

Ian, welcome to Trigonometry.

Thank you.

Great to have you on.

Tell us a little bit about you before we get into the conversation itself.

I thought that was Australian for a second.

To a normal person listening, there may seem like there's a contradiction there.

On the one hand, you say it's not commensurate with the science.

On the other hand, you're the only scientist who's been saying this for a long time.

How do you explain that?

So you mean in other fields people are not saying this stuff?