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The micro-macro-problem of the social sciences is also present in human geographies' discussions of creativity. Creativity could be conceptualized either as a capability of subjects or as emerging from interaction processes. A direct consequence of this theoretical indecision is an inconsistent notion of creativity in Nigel Thrifts' nonrepresentational theory (NRT) that is originally developed to valuate creative praxis. The paper advances a proposal for conceptualizing creativity in NRT by using the philosophy of symbolic forms established by Ernst Cassirer. First, the paper develops a notion of individual creativity that is implied in Cassirers' work on symbolic pregnance and symbolic forms and via Bourdieus' interpretation of Cassirer also in the French sociologists' theory of incorporation. Second, the paper shows two possibilities to include the outlined notion of individual creativity in NRT. Creativity could be linked with NRT by modifying Bourdieus' concept of incorporation as used to establish a notion of nonrepresentational praxis. The second possibility of including creativity is a connection of affect and experience, which leads directly to the emergence of novelty.

Als eine Anpassungsmasnahme an den Klimawandel und als direkte Konsequenz aus dem Hitzesommer 2003 wurde in Deutschland ein Hitzewarnsystem (Heat Health Warning System HHWS) aufgebaut. Eine prinzipielle Einschrankung des beim Deutschen Wetterdienst eingesetzten Systems bestand darin, dass nur Aussagen uber die Verhaltnisse im Freien gemacht werden konnten. Die haufig sehr stark abweichende Innenraumsituation wurde nicht berucksichtigt. Dazu wurde das bestehende Hitzewarnverfahren um ein thermisches Gebaudesimulationsmodell erweitert. Es erlaubt eine Abschatzung der Warmebelastung in Innenraumen in Abhangigkeit von den vorhergesagten meteorologischen Ausenbedingungen. Obwohl sich das Vorhersagemodell aus Praktikabilitatsgrunden auf einen “ungunstigen Fall” beschrankt, liefern die Belastungswerte eine bedeutende Information. Das Verfahren wurde im Sommer 2007 im Parallelbetrieb eingesetzt und machte den Zusatznutzen deutlich. Extending the existing heat/health warning system with indoor heat load predictions. A heat/health warning system (HHWS) was established in Germany as a climate change adaptation measure and as a direct consequence of the heat wave in 2003. The system used by the German weather service currently only provides information about outdoor conditions, i.e. no data on indoor climate – which may differ significantly from ambient conditions – are provided. This article describes an extension of the existing heat/health warning system based on a thermal building simulation model. It enables internal heat loads to be estimated based on predicted meteorological conditions. While the prediction model is limited to a worst-case scenario for practicability reasons, the information derived from the load values can nevertheless be very useful. The technique was used during summer 2007 in parallel with the conventional system, illustrating the added value.