Figure 2: Model-estimated total CH4 emissions (the solid orange line shows the estimation and the range of uncertainty is shown by orange shading) and estimated natural gas (NG) CH4 emissions (upper and lower range in blue) in the NE region during 2010–2018.

Figure 3: Changes in estimated CH4 emissions from natural gas (NG) (upper and lower range in blue) and model-estimated total CH4 emissions (orange) compared to previous years in the NE region.