So, what is the solution? Well, it’s easy. Anyone emitting lots of greenhouse gas must stop doing that as soon as possible. We know who that is: the people on Level 4 who have by far the highest levels of CO2 emissions, so let’s get on with it. And let’s make sure we have a serious data set for this serious problem so that we can track our progress.
So, how do the level 4 travels then?
