piled up logs or firewood, a renewable energy resource for heating

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Photo credit: © Elmar Gubisch / Alamy / Afripics
License: Royalty Free
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Keywords: alternative, assessment, biomass, climate, combustible, combustion, consumption, cycle, demand, economy, ecosystem, energy, environmental, firewood, form, fuel, heating, life, material, neutral, potency, potential, protection, raw, renewable, residual, room, service, stack, sustainability, sustainable, system, wood