‘On Wednesday morning, workers poured hydrogen peroxide into the Lincoln Memorial Reflecting Pool in Washington, DC.

The treatment is the latest attempt by the Interior Department to control an algae bloom that has turned the pool bright green, despite President Donald Trump’s costly renovation to make it “American flag blue” in time for the nation’s 250th anniversary. Hot temperatures and climate change are among the risk factors that could be driving the outbreak.…’ (Molly Taft via WIRED)