ausblenden:
Schlagwörter:
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Zusammenfassung:
The concepts of climate variability, due to natural processes, and of cli—
mate change, related to man’s activitites, are illustrated. Different types
of internal mechanisms, such as multiple equilibria and the integration of
noise, are discussed. A systematic approach to discriminate between natu-
ral variability and anthropogenic change indicates that the latest warming
trends in the observational record can no longer be understood as “vari-
ability” but is likely related to external processes, and in particular to the
enhanced greenhouse effect. Finally we discuss briefly major challenges
climate research will face in the coming decades.
