Additionally, heating costs have fallen by at least 30 percent. Overall, the biomass production increased 10 times, raising to 160,000 tons of fuel production per year, http://www.eurasia.undp.org/content/rbec/en/home/library/environment_energy/ Development_stories_from_Europe_and_Central_Asia_Volume_lll.html. Health benefits in programmes at up to 4:1 benefit-cost ratio significantly exceed energy cost reductions providing strong returns to government.