I think the more apt analogy is an obese person and calories-in, calories-out. It doesn't take just reducing calories input to daily needs (zero net carbon emm

I think the more apt analogy is an obese person and calories-in, calories-out. It doesn't take just reducing calories input to daily needs (zero net carbon emmisions), they will stay obese and still at the risk of heart attack. They need to go below recommended calories to go into negative cal balance in order to loose weight. Zero net emmisions is a good start but its not enough as all it means is that we are maintaining status-quo ie warming up.