So once again, we increase the hydrogen ion concentration as compared to this case here. And notice that when we don't have any CO2 present but we lower the PH, the black curve actually shifts to the blue position. And when we keep the PH a 7.4 and we add carbon dioxide, the blue curve shifts to where the red curve is. So we see that hydrogen ions and carbon dioxide together create the Bore effect, which actually shifts that entire oxygen binding curve of fumiglopin towards the right side. And what that means is it decreases the affinity of hemoglobin for oxygen. And what that means is it allows the hemoglobin to actually unload and release more oxygen to the tissues of our body.