Professor Ian Plimer
👤 SpeakerAppearances Over Time
Podcast Appearances
So we've had an evolution of the atmosphere.
We've demonized something which you can't see.
You can't taste it.
You can't smell it.
And so you can demonize it, the same as you can demonize viruses or bacteria or radiation.
It's a wonderful, wonderful thing to scare people with.
We don't get told that carbon dioxide is plant food.
Without carbon dioxide, you have no life on Earth.
Well, you never have consensus in science.
Once you've got consensus, it isn't science.
The second thing is we've had times in the past when the carbon dioxide content of the atmosphere was at least 10% and perhaps 20% compared with 0.04%.
And what did we have then?
We had the biggest ice age as this planet's ever enjoyed.
And this is when we had kilometres of ice at the equator at sea level.
And the evidence for this is incontrovertible.
It's worldwide.
And this is written in the rocks.
We geologists see this.
We understand it.