Health

Managing Hazardous Indoor Heat

As climate change–driven extreme heat events become more common, steps should be taken to deal with buildings that “can turn into ovens,” according to Harvard Chan School experts.

June 20, 2024 – Addressing the Increasing Threat of Extreme Heat in Buildings

As climate change continues to drive more frequent and severe heat events, it is crucial to address the issue of buildings that can become dangerously hot, according to experts from the Harvard T.H. Chan School of Public Health.

In a June 19 opinion piece for the Boston Globe, Joseph Allen, an associate professor of exposure assessment science, and Kari Nadeau, the John Rock Professor of Climate and Population Studies and chair of the Department of Environmental Health, emphasized the need for improved air conditioning systems. They advocate for energy-efficient cooling solutions and strategies to mitigate indoor heat risks.

Allen and Nadeau highlighted the lethal potential of extreme heat, referencing recent research from their school which indicates that one in every 500 stroke deaths is attributable to extreme heat. They also pointed out that excessive heat can cause various health problems, including cardiovascular and cognitive issues. While cooling centers provide some relief, they noted that older adults might not recognize the danger, and accessing these centers can be difficult for some individuals.

To combat indoor heat threats, Allen and Nadeau proposed several measures:
– Implementing policies that set a maximum indoor temperature during summer, similar to New York City’s upcoming plan.
– Expanding home energy assistance programs to cover cooling costs.
– Enhancing the energy efficiency and affordability of air conditioners.
– Promoting “passive house” designs that minimize the need for heating and cooling.
– Taking simple actions such as painting roofs white and planting trees around buildings to provide shade.

For more insights, read the full Boston Globe Ideas article: Heat waves like this one demand a rethinking of air conditioning.

Photo: iStock/Miguel Angel Flores

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