São Paulo's Pinheiros River turns emerald green from algae bloom during severe drought, while city's wildfires cause second-most polluted air globally, prompting health warnings.

Sao Paulo, Brazil, is facing environmental challenges as the Pinheiros River has turned emerald green due to an algae bloom from severe drought. Concurrently, wildfires have filled the city with smoke, leading to the second-most polluted air globally, as reported by IQAir. The local environmental agency has warned residents to avoid strenuous outdoor activities, stay hydrated, and keep windows closed to mitigate health risks.

September 10, 2024
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