According to the latest Intergovernmental Panel in Climate Change assessment report, heat exposure in Africa is projected to increase in terms of person-days. Heat exposure challenges are increased by a shortage of basic services and infrastructure, along with low-quality housing, poor socio-economic conditions and few green spaces in slums and informal settlements. The experiment established that vertical greening was a solution for heat problems in informal neighbourhoods. And it had the added benefit of providing healthy food in the form of vegetables. From a typical prototype in Nigeria, up to 1kg of vegetables were harvested in a six-week cycle. In Dar es Salaam, the different vegetables yielded varying quantities. The vertical gardens also affected the indoor air temperature of the rooms they enveloped. Up to 2.88℃ maximum temperature and 0.7℃ minimum temperature reductions were recorded during a 45-day field measurement campaign held in September and October 2021 in Lagos. Wall temperature reduced by as much as 5°C during the 30-day measurement campaign undertaken between December 2020 and January 2021 in Dar es Salaam.
SOURCE: THE CONVERSATION
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