ClientEarth is an environmental lawyers organisation that brought the case to the Supreme Court. It comes after the Court of Appeal declined an application for judicial review of the Government's plans to improve air quality.
Today Lord Carnwath JSC backed ClientEarth's case, ruling the Government is breaching article 13 of the EU Air Quality Directive.
More top news
John Edward Doherty, 38, will appear before magistrates later charged with the murder of Archie Sheppard.
A woman hit by police gunfire during a counter-terrorism operation has been arrested after being released from hospital.
Police have been granted extra time to question a man who is being held on suspicion of planning a terror attack.