Introduction Safe housing is a basic human need that contributes to a sense of belonging, ownership, identity, citizenship, and self-sufficiency [1]. Globally, 1.6 billion people live in inadequate housing, of which one billion reside in slums and informal settlements [2]. These settlements may be situated in environmentally unsafe or unhealthy areas, for example, in river flood zones and near industry. Many of the inhabitants who live there, live with little or no tenure for land or dwellings (e.g. rent informally) and typically have no or infrequent supply of basic services. In addition, an important element of safe housing is thermal comfort. Cold and heat extreme temperatures impact human health. In general, people at increased risk of temperature-related illnesses are those with (1) pre-existing health conditions, such as cardiovascular
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