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DN Debatt: ”Kalhyggesbruk ger stora utsläpp av växthusgaser”

Swedish forests are important carbon sinks today, despite emissions from deforestration. The choice of management is paramount for the impacts on climate change and some of the concepts used in the climate discussion today needs to be thought over and based on research, writes Professor Anders Lindroth with SU colleague Christina Moberg in a debate article in DN.
Deforestration research site. Phot Patrik Vestin.
Photo: Patrik Vestin

The intense discussion on forest and land use management is continued in the European parliament, as decisions are being made later this autumn. The idea that there are only small climate impacts from bioenergy is more and more questioned, hence challenging the current forest management policies. Some people in the debate means that the harvest of Swedish forests can be increased as this would be climate neutral. But the mechanisms of carbon sources and sinks and the use of forest products are complex, and  "fossil free", a key word in the discussion, needs to be used carefully as there are variations in energy efficiency in relation to greenhouse gas  emissions, the authors points out.

The article refering to a LUCCI-related hot from the press dissertation, "Effects of forest management on greenhouse gas fluxes in a boreal forest" by Patrik Vestin. In his Ph D thesis, yet to be defended on Friday the 22nd of September, Patrik Vestin finds that clear-cutting generates release of nitrous oxide and methane, both stronger greenhouse gases though less in amounts than carbon dioxide, that can not be neglected.

 

Source: DN.se (article in swedish)

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