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To argue that human emissions of CO2 are forcing global warming requires all the known, and possibly chaotic, mechanisms of natural global warming to be critically analysed and dismissed. This has not even been attempted.

— Ian Plimer Heaven and Earth (2009)

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More quotes by Ian Plimer

The climate stubbornly refuses to co-operate with computer models and the writers of alarmist popular articles and books.

Heaven and Earth (2009)

It is naïve to think that a [computer] model can predict future events on the Earth. To try to predict the future based on just one variable (CO2) in extraordinarily complex natural systems is folly.

Heaven and Earth (2009)

If we do not understand the cause or causes for the biggest climate change of all time, what hope have we of understanding modern climate change?

Heaven and Earth (2009)

The slogan "Stop climate change" is a very public advertisement of absolute total ignorance as it is not cognisant of history, archaeology, geology, astronomy, ocean sciences, atmospheric sciences and the life sciences.

Heaven and Earth (2009)

There were no CO2 emitting industries in the Medieval Warming. This natural warming event was greater than the Late 20th Century Warming, which we are told is due to human emissions of CO2.

Heaven and Earth (2009)

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Quote text and notes from Wikiquote: Ian Plimer (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.