Professor Ian Plimer

I'd edited an encyclopedia of geology.

I'm a polymath with a specialist in one area, but I could see very quickly this wasn't science.

This was absolute nonsense.

Because if you're to promote an idea in science, it has to be commensurate with all the other validated work in science.

And this wasn't commensurate with what we know in geology and what we've known for hundreds of years.

We've known about sea level changes for a long time.

Charles Darwin wrote a book about coral reefs and sea level changes.

That was in 1842.

So what we've been told about sea level change was just nonsense.

We also had seen cycles of climate in the past where we've had very, very warm periods.

We've had very cold periods.

We've had six major ice ages.

We're currently in one of those ice ages.

It started 34 million years ago.

And during that time, carbon dioxide has changed enormously.

It was unrelated to temperature.

It never has been in the past, so I can't see why it has to be in the present.

And we see in the rocks that when you can back-calculate

how much carbon dioxide was in the atmosphere.

We've had for the last 500 million years a decrease in carbon dioxide in the atmosphere.