Why has the sea off Scotland turned turquoise?

Media coverage

• Title	Why has the sea off Scotland turned turquoise?
  Media name/outlet	BBC
  Country/Territory	United Kingdom
  Date	25/06/21
  URL	https://www.bbc.co.uk/news/uk-scotland-57609040
  Persons	Paul Tett

• Title	Why has the sea off Scotland turned turquoise?
  Media name/outlet	BBC Scotland News
  Country/Territory	United Kingdom
  Date	25/06/21
  URL	https://www.bbc.com/news/uk-scotland-57609040
  Persons	Paul Tett