I don't think so - 2.5% is pretty significant. We only have to divide the total global emission into 40 pieces before each piece fall below 2.5%. Or, consider

I don't think so - 2.5% is pretty significant. We only have to divide the total global emission into 40 pieces before each piece fall below 2.5%. Or, considering that total US emission is 14% of the world (2017), you just have to divide the whole nation into six sectors and claim each and every one is not significant enough, so that we have to focus on "something else". There's always some "something else". Of course we have to be smart about our efforts, but it's time we stopped passing the buck around.