<p>Researchers conducted a comprehensive analysis on the carbon footprint of constructing a wooden house in Japan. The team found that the estimated carbon footprint of a house in Japan is 38 tons of CO<sub>2</sub>, with the largest share coming from the electric power sector at 32% of all emissions. Other sectors included were pig iron production at 12% of total emissions; cement, road freight transport, and private power generation each covering 7%.</p>