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Reply to Wernick, I. K. et al.; Palahí, M. et al.

The Original Article was published on 28 April 2021

The Original Article was published on 28 April 2021

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Fig. 1: Large and small forest-loss patches, and t-test on cloud-free observations, for the periods 2013–2015 and 2016–2018.
Fig. 2: Comparison between pixel-based and sample-based estimates of forest change in Sweden and Finland.
Fig. 3: Forest loss from ‘extreme events’ stated in our study and in the FORWIND database.

Data availability

To ensure full reproducibility and transparency of our research, all of the data and the scripts used in our analysis have been made available or can be obtained from the corresponding author upon request. Codes used for this study (Google Earth Engine and R scripts, and data synthesis on the validation for GFC stable forests and loss) are available on GitHub at


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We thank F. Achard, H. Eva, F. Gianoli, M. Pickering, M. Piccardo, R. Abad Vinas, B. Eckhart, S. Rossi and B. Marcolla for the validation exercise; and A. Korosuo for clarifications of specific country circumstances and for useful editorial suggestions. The salvage loggings dataset was collected in 15 EU Member States by searching national datasets and/or consulting with national experts. Through the Standing Forestry Committee under the European Commission, the following Member States validated and/or acknowledged data on salvage logging and/or provided additional information: Austria, Bulgaria, Croatia, Czechia, Estonia, France, Finland, Germany, Hungary, Lithuania, Romania, Poland, Slovakia, Slovenia and Sweden. It is important to note that the time series for which annual data on salvage loggings are available varies among Member States.

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Authors and Affiliations



G.C., V.A. and A.C. designed the validation methodology. G.C. and G.D. analysed the data and wrote the Google Earth Engine and R scripts. G.C., V.A., G.G. and A.C. wrote the manuscript with contributions from G.D., G.L. and R.P. All authors contributed critically to the interpretation of the results and gave final approval for publication.

Corresponding author

Correspondence to Guido Ceccherini.

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The authors declare no competing interests.

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Ceccherini, G., Duveiller, G., Grassi, G. et al. Reply to Wernick, I. K. et al.; Palahí, M. et al.. Nature 592, E18–E23 (2021).

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