Why is newly renovated Reflecting Pool in Washington DC full of algae?
The Lincoln Memorial Reflecting Pool in the US capital has turned green with algae days after it was refilled with water following renovations.
President Donald Trump ordered the revamp last year, claiming the pool had been left in a poor condition by President Joe Biden.
It's had issues with algae for decades. BBC Verify's Jake Horton has looked into what's behind the latest problem.
Produced by Ian Aikman, graphics by Leo Scutt-Richter
Related Stories
Canada
A Brain Train Heads For Canada With Dozens Of American Scholars On Board
44 minutes ago
Canada
How Canada’s turn toward Europe might test the EU's borders
45 minutes ago
Canada
Day 3 of the Quebec election campaign gets underway. Here's what you need to know
45 minutes ago
Canada
Zebra mussels found during inspection of boat in Saskatchewan provincial park
1 hour ago
Canada
‘If it’s made in the US, I don’t buy it’: Canadians on boycotting Trump’s America
1 hour ago
Canada
Untested in court, Trump's new tariffs on Canada raise legal questions
1 hour ago
Canada
Federal Court staff work weekends, on vacation to keep up with cases: chief justice
2 hours ago
Canada
Toronto, Montreal, Ottawa residents among 32 Canadians missing at Nepal
2 hours ago