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Global carbon footprints

Methods and import/export corrected results from the Nordic countries in global carbon footprint studies

image of Global carbon footprints

There is increasing public, media and policy interest in the concepts of carbon footprints and the emissions associated with international trade. Many wonder if our growing consumption of imported products offsets our gains in climate policy. A variety of publications suggest that emission reductions in rich countries are offset by increased imports, i.e. our national carbon footprint is growing while our territorial emissions are getting smaller. Some refute this claim stating that the methods and data are unreliable, while others acknowledge the issue but argue it is not important for climate policy. This report aims to dispel some myths about carbon footprints and trade-adjusted emission inventories. A review of studies finds large variations between studies of the Nordic countries, but closer inspection shows that many of the variations are due to inconsistent definitions and non-comparable methods. Calculations using a consistent global model provide updated estimates for the Nordic countries in 1997, 2001, and 2004. A general observation for the Nordic countries is that the overall carbon footprint is larger than territorial based emissions, and that the difference is increasing. Further we also observe an increase in the total carbon footprint from 2001 to 2004. This stresses the need for policy makers to track the cause-effect chains between consumption and production to understand and mitigate potential carbon leakage. The study was carried out by researchers from CICERO and MiSA and was financed by the Nordic Council of Ministers.

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Conclusion

This report has covered many aspects of carbon footprints and trade adjusted emission inventories. Here we give a brief summary of each chapter and its broad implications.

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