Don't think the USA can let up, as Trump "believes," on reducing and eliminating gas pollution. It cannot. Let's just say it is important CONTAINMENT is in place. The country is doing well and it should continue to do so.
Just because the gases at the bottom of the graph seem insignificant, they are very significant. They have high CO2 equivalents. So, if the graph reflected the CO2 equivalent of those gases it would be far more revealing danger the USA introduces to Earth everyday. This graph simply reflects the amounts of the gases and not the danger of them.
