Environmental Science · Level 2 · Intermediate
Street trees provide an opportunity to mitigate urban heat and reduce risk of high heat exposure
Ettinger AK, Bratman GN, Carey M, et al. (2024). Scientific Reports. doi:10.1038/s41598-024-51921-y · CC BY 4.0
Step 1 of 2Read the paper
This study asked how street trees affect the summer air temperatures people feel on sidewalks in a low-canopy neighbourhood of Tacoma, Washington. The team placed temperature loggers on utility poles, measured the trees around each one, and used statistical models to link tree cover to hourly temperatures and to the chance of crossing state heat-safety limits.
How to read it
- Read the three research questions at the end of the Introduction before anything else.
- Methods (Data): note logger height, why only 46 sites had data, and where the 26.7 °C and 32.2 °C thresholds come from.
- In Table 1, focus on the estimate, 95% CI and p-value for canopy cover and for elevation.
- Compare the Discussion's claims with the limitations it mentions, such as humidity and a single summer.
Step 2 of 2Take the test
15 questions · about 40 minutes including reading · pick an answer to see straight away if it’s right. Nothing is saved.
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Paper: Ettinger AK, Bratman GN, Carey M, et al., Scientific Reports (2024), licensed CC BY 4.0. Summary and questions are Research Nest’s own; read the original for the full study.