Ключевые слова: air quality, biodegradable, biomass, burning stove, carbon dioxide, carbon footprint, carbon neutral, clean air, clean burning, clean energy, clean technology, climate change, concept, earth friendly, eco conscious, eco friendly, ecofriendly, emission reduction, environmental responsibility, environmentally friendly, green energy, green living, low emissions, natural fuel, pollution free, renewable energy, renewable fuel, renewable heat, renewable heating, renewable power, renewable resource, sustainability, sustainable development, sustainable energy, sustainable living, wood pellets, zero waste,