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With a new energy performance diagnosis (DPE) in effect from July 1, 2021, about ** percent of the French housing stock changed their class between the new and old DPE. Thus, it is observed that most of these homes moved to an energy class D, meaning their energy consumption per square meter would be between *** and *** kWh annually.
This new DPE is part of the European energy policy to reduce energy consumption in housing and thereby limit greenhouse gas (GHG) emissions.

Greenhouse gas emissions in France

GHGs are among the causes of global warming of our planet; they can be natural, such as ozone or methane, or industrial, such as halogenated hydrocarbons. In 2019, nearly half of the French population reported being concerned about global warming and its effects, considering GHGs the most worrying environmental threat. Although per capita GHG emissions have decreased in recent years in France, each French person emitted nearly tons of CO2 equivalent in 2018. Similarly, the GHG index in France also declined: it was estimated that GHG emissions were about ** percent lower in 2018 compared to 2005.

Air pollution in France

Indeed, global warming and air pollution are both major environmental issues at the national and global levels. In France alone, there were nearly * premature deaths due to air pollution in 2015, about **** of which were caused by fine particulate matter PM2.5.