It’s summer, and it’s been hot, even in northern cities such as Boston. But not everyone is hit with the heat in the same way, even within the same neighborhood.
Take two streets in Boston at 4:30 p.m. on a recent day, as an example. Standing in the sun on Lewis Place, the temperature was 94 degrees Fahrenheit (34.6 degrees Celsius). On Dudley Common, it was 103 F (39.2 C). Both streets were hot, but the temperature on one was much more dangerous for people’s health and well-being.
The kicker is that those two streets are only a few blocks apart. The difference epitomizes the urban heat island effect, created as pavement and buildings absorb and trap heat, making some parts of the city hotter.
A closer look at the two streets shows some key differences:
- Dudley Common is public open space sandwiched between two thoroughfares that create a wide expanse of pavement lined with storefronts. There aren’t many trees to be found.
- Lewis Place is a residential cul-de-sac with two-story homes accompanied by lots of trees.
This comparison of two places within a few minutes’ walk of each other puts the urban heat island effect under a microscope. It also shows the limits of today’s strategies for managing and responding to heat and its effects on public health, which are generally attuned to neighborhood or citywide conditions.
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