In most cases, when using wood from final felling directly for energy production, payback times could be many decades to more than a century, with substantial increases in net CO2 emissions, in the meantime. This is especially the case for many forests in Europe, because they are currently an effective carbon sink. Additional felling reduces average growth rates in these forests and thus the sequestration of carbon. The same is likely to be true for managed forests in other temperate regions. If wood from additional felling is used, it would be most effective to use it in products that stay in circulation for a long time, only to be used for energy at the end of its service life. An increase in wood demand may lead to an intensification of forest management, which may temporarily increase carbon sequestration rates and biomass yields. This would eventually reduce the payback times. However, it must be noted that it would still take a substantial amount of time for the intensification of forest management to become effective, especially when it includes drastic measures, such as converting natural forests into plantations.
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