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Environmental Health

HPHWinter22_FLOODING_2-1

Letter from Nairobi

My friend’s butterfly garden seemed absurd. Now it relieves my climate stress.
By Christine Mungai

Climate, Changed

Stories of resilience, creativity, and fortitude
By Michael F. Fitzgerald
Average Annual NO2 concentrations in 2019

London catches a breath of fresh air

When Sadiq Khan became mayor, decreasing air pollution was a top priority. Here’s how new policies have reduced health risks.