Abstract
Abstract China Building energy consumption contributes about 30% to the total national greenhouse-gas (GHG) emissions, and thus, to climate change. At the same time, climate change will in turn impact the total energy consumption and GHG emissions of residential sector. This study investigated the potential impact of climate change on the total energy consumption and related GHG emissions of housing in Southern China. Identified potential pathways were implemented for existing and new residential buildings to adapt to climate change. Results show that the ambient temperatures in 2020s, 2050s and 2080s will increase by 0.82 oC, 1.91 oC and 3.41 oC accordingly. The total heating and cooling energy use of 3.5 and 5.5 star-buildings are projected to increase 25% and 20% respectively with a 1.0 oC global warming. However, utilizing energy-efficient appliances and retrofitting the house to 6.5 stars or higher level are substantial measures to maintain the level same as or less than the current level of overall energy consumption and GHG emissions. Climate adaptions that focus on improving the energy-efficiency of building envelop, applying renewable energy and switching to facilities with low GHG emissions are desirable solutions.
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