It’s mendacious to claim that somehow Jochem Marotzke is turning sceptic (without realising it) when in the first part of the Der Spiegel interview he says:
“The strongest driver of climate change is clearly the CO2 increase. In addition, an increase of other greenhouse gases such as methane or nitrous oxide. A large role is played by aerosols, ie particles that float in the atmosphere. But the dominant effect comes from the CO2. And because CO2 remains in the atmosphere, this gas will also affect the climate significantly in the future. Unless we reduce the emissions of CO2.”
He then re-emphasises the need to take radical action to avoid 2C of warming and finally states “the scientific quality of the arguments in this book leaves much to be desired.”
(courtesy of Google translate of
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