So we need to add into EROEI all the energy needed to deactivate/retrofit de old technology used in planes and large boats. If I don't do this exercise I will be as in denial as the ones that don't believe in climate change. We need to reduce air and maritime travel. We need to invest in trains and also avoid unnecessary travel. Fuel taxes in the previously mentioned sectors may be a good option because at the moment they don't have taxes on externalities. We have only a few years to prevent climate change getting out of hand and there are simple and effective solutions. We do not have a carbon budget for solutions that are not yet viable on paper.