Comment on "Tropical forests are a net carbon source based on aboveground measurements of gain and loss".

Matthew C Hansen Peter V PotapovAlexandra Tyukavina

Published in: Science (New York, N.Y.) (2019)

Baccini et al (Reports, 13 October 2017, p. 230) report MODIS-derived pantropical forest carbon change, with spatial patterns of carbon loss that do not correspond to higher-resolution Landsat-derived tree cover loss. The assumption that map results are unbiased and free of commission and omission errors is not supported. The application of passive moderate-resolution optical data to monitor forest carbon change overstates our current capabilities.

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