The International Energy Agency released a report May 16 that concluded that carbon dioxide emissions from residential, commercial, and public buildings could be cut by 25 percent by 2050 through the use of energy efficient technologies like solar heating and thermal storage. The report, Technology Roadmap – Energy-Efficient Buildings: Heating and Cooling Equipment, determined that solar thermal, heat pumps, thermal energy storage, and combined heat and power for buildings could reduce emissions by up to 2 GT by midcentury.