We employed a global high-resolution inverse model to optimize the CH4 emission using Greenhouse gas Observing Satellite (GOSAT) and surface observation data for a period from 2011−2017 for the two main source categories of anthropogenic and natural emissions. We used the Emission Database for Global Atmospheric Research (EDGAR v4. 3. https://ntnkmif55wgvg.blog2freedom.com/34914067/a-guide-to-opportunities-and-challenges-of-developing-a-virtual-reality-simulation-for-disaster-medicine-courses-a-letter-to-editor