RT null T1 Common carbon metric for measuring energy use and reporting greenhouse gas emissions from building operations A1 United Nations Environment Programme, PB United Nations Environment Programme YR 2009 FD 2009 LK https://wedocs.unep.org/handle/20.500.11822/7922 UL https://wedocs.unep.org/handle/20.500.11822/7922 NO Leading experts from around the world have, through extensive international cooperation, developed a universal method of measuring a building's carbon footprint. Supported by the United Nations Environment Programme, this new 'Common Carbon Metric' will allow emissions from buildings around the world to be consistently assessed and compared, and improvements measured. DS UN Environment Document Repository RD Sep 19, 2026