Algae

Algae, a diverse group of aquatic organisms, have recently become a prominent issue in the Lincoln Memorial Reflecting Pool in Washington D.C. Following a significant $14.7 million renovation aimed at turning the pool's water "American Flag blue," algae blooms have rapidly appeared, turning the water green. This development has necessitated the draining of the pool for further repairs, just weeks after the refurbishment was completed. The Trump administration has publicly addressed the situation, with officials drawing comparisons between the battle against the algae and the conflict with Iran. The presence of algae and peeling paint has led to the issuance of a permit to drain the pool, highlighting an ongoing challenge in maintaining the aesthetic and structural integrity of this national monument. The situation underscores the persistent difficulties in controlling natural biological growth in large water features, even after extensive and costly renovations.