As the Lincoln Reflecting Pool turned green with algae, officials are now using chemicals to fix it.

Workers are now deploying hydrogen peroxide in a bid to bring an algal bloom under control in the Lincoln Memorial Reflecting pool. The cause of the pool turning green is an algal bloom, which has happened following the renovations of the historical landmark.

Is this what happens when you have zero scientists in your administration?” said one critic. This morning at the reflecting pool pic.twitter.com/uygkbcn7Mn — bob kovach (@bkovoDC) June 16, 2026 National Park Service employees on Tuesday were seen pouring a bleaching agent into the Lincoln Memorial Reflecting Pool in Washington,

The race to de-greenify the Reflecting Pool continues, as National Park Service workers were seen dumping bottles of hydrogen peroxide into the pool Tuesday morning. Algae first appeared in the pool last week shortly after its reopening,

Hydrogen peroxide is an ingredient in many bleaches, dyes, cleansers, antiseptics, and disinfectants. It has many potential uses, such as for skin care and oral hygiene. However, there are also safety concerns if people use it incorrectly or in higher ...