Table 4.3 thus shows that the combination of direct health impacts and climate change risks weigh heavily on the attractiveness of fossil fuels, in particular coal. While biomass is carbon-neutral if it is harvested sustainably, it can have significant health impacts due to local and regional particulate emissions. While such estimates provide indications of orders of magnitude rather than precise measurements of impacts, they nevertheless contribute to a more balanced view of the impacts of different power generation technologies.