The researchers developed a new simple method to model carbon monoxide levels in the atmosphere. They tested this method against more detailed models and real-world data from satellites and aircraft. The new method showed good agreement with observations in the troposphere and lower stratosphere, with some small differences in certain regions. By using this new method to analyze data from satellites, they were able to improve the accuracy of carbon monoxide distribution in the atmosphere. This study shows that the new method is effective in simulating carbon monoxide levels and could be used for future high-resolution data analysis over long periods of time.