How and why algae clouded Trump's vision for an 'American flag blue' Reflecting Pool

Published June 19, 2026 · Category: News

Overview

National Park Service employees use a vacuum pump to clean algae off the bottom of the newly repainted Lincoln Memorial Reflecting Pool on Tuesday.

The shallow, sunny waters of the reflecting pool are an ideal incubator for algae growth in the summertime. Experts say the recent renovation may have helped accelerate it.

Details

(Image credit: Chip Somodevilla)

Source

Originally published at www.npr.org.

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