Lincoln Memorial Reflecting Pool Is Now Green: 4 Possible Reasons
Summary
The Lincoln Memorial Reflecting Pool recently turned green shortly after a major renovation. The project, ordered by President Donald Trump, aimed to give the pool a deeper blue color but may have unintentionally encouraged algae growth.Key Facts
- The pool was resurfaced with a dark blue coating to improve appearance and stop leaks.
- The renovation cost about $14 million, much higher than the initially suggested $1.5 to $2 million.
- The work was done through a no-bid contract, leading to a lawsuit by a preservation group.
- Algae growth is a common problem in the shallow, slow-moving water of the reflecting pool.
- Similar algae blooms happened after a previous $34 million renovation in 2012.
- Possible reasons for the recent algae bloom include leftover algae from construction, the darker coating heating the water, and warm, sunny, still weather conditions.
- Experts say darker surfaces absorb more heat, which can encourage algae, but other factors like nutrient levels also play a big role.
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