4 scientists explain why the Reflecting Pool may be green instead of blue on July 4.

Add Yahoo as a preferred source to see more of our stories on Google. Garden pond surrounded by rocks - Scaliger/Getty Images If you have a pond on your property, you may find yourself waging a constant battle with the algae that can form therein.

Just days after a multi-million-dollar refurbishment designed to turn the reflecting pool in front of the Lincoln Memorial in Washington blue, the water has turned green again as algae has taken over.

A beloved pond on Martha's Vineyard is being choked by toxic algae, but a new piece of technology could help save it. Every year tens of thousands of people flock to Martha's Vineyard for the sun, the sand and the scenery. But in order to keep this special ...

Harmful Cyanobacteria Blooms, aka HCBs, were discovered in three Cape ponds, including Upper Mill Pond in Brewster, prompting recreational-use advisories to be issued, according to Association to Preserve Cape Cod. Often seen as a thick scum of blue-green ...

Like the Strait of Hormuz, the Lincoln Memorial Reflecting Pool has exposed the limits of American power: President Donald Trump is also losing his war against algae.