I refer to the ongoing discussion between the climatic skeptics and mainstream scientists and high¬light some skeptical argumentation, arguing that the current warming is not unprecedented in its magnitude nor dynamics and in the geological past the correlation between temperature and CO2 was frequently zero or negative. There is no evidence that CO2 was the triggering factor for global temperature changes. There are significant cl¬mate drivers other than greenhouse gases which may, at least partly, explain the current warming. Arguments are provided to support the notion that the solar irradiance coupled with cosmic rays, oceanic oscillation and changes in atmospheric aerosols can explain much of the warming since preindustrial times. Finally, the current global environmental trends do not indicate impending climatic catastrophe. Nevertheless, I emphasize that the development of human civilization undoubtedly influenced global climate, and that some anthropogenic influences are still to be studied. Many feedbacks between atmosphere, ocean, land and human activities remain poorly known and there are reasons to decouple economic development from the burning offossil fuels.
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