This episode is talking about “Long transition with uncertainties”.　IEEJ recently published its official annual global energy outlook for 2050. This is a forecast based outlook, not a back-cast based outlook such as the NZE scenario by IEA. What is most likely to happen based on a set of reasonable and well-grounded assumptions as portrayed by forecast outlooks may be quite different from what needs to happen to realize a pre-determined objective, such as carbon neutrality by 2050, as portrayed by back-cast outlooks.