Dear authors, I agree with the reviewers that this is an interesting manuscript that will appeal to a wide body of readers. I am mostly satisfied with your plan to address the reviewers' concerns as outlined in your response. However, I am concerned that you have not evaluated the datasets used in your analysis and your results may be affected by the errors in the datasets such as the one case pointed out by Reviewer 2. In Figure 2 you have attempted to subjectively evaluate the GlobeLand30 dataset. Can you make this evaluation more thorough? You could also add an online supplement listing the accuracy assessments that were performed by others on the datasets that you have used. I now invite you submit a revised manuscript addressing these issues.