Biomass being a renewable source, of course it can’t run out. Biomass is made by burning natural resources, like wood, crops, and waste. Using biomass, we can still burn things to make energy, and have unlimited amounts of it. Yes, carbon dioxide is created by burning biomass, but instead, other forms of biomass (specifically plants) can absorb the CO2, which helps them with photosynthesis. If there was a source that can be like fossil fuels, but cleaner, and be unlimited, it’s BIOMASS.