Improvements in insulation and roof coatings can achieve as much as a 70% reduction in greenhouse gas emissions from buildings in North America, Europe and Japan, according to the International Council of Chemical Associations. "Between now and 2050, you could save about 600 million tons of CO₂ equivalent a year. The savings potential in the buildings sector is huge and something governments can control," said Russel Mills, global climate director at Dow Chemical.