People are being urged to join UK landmarks as they switch off their lights for an hour on Saturday night to back action on climate change.
Obama Hails UK Ahead Of Referendum
The United Kingdom appears to have "worked pretty well'', Barack Obama declared as he said America's interest in the Scottish referendum issue was to ensure it retained a "strong, robust, united and effective ally''.
The US president was pressed for his thoughts on the question of independence as he appeared alongside Prime Minister David Cameron at a press conference following the G7 summit in Brussels.
"There is a referendum process in place and it is up to the people of Scotland,'' he told reporters.
"The United Kingdom has been an extraordinary partner to us. From the outside at least, it looks like things have worked pretty well.
"And we obviously have a deep interest in making sure that one of the closest allies we will ever have remains a strong, robust, united and effective partner.
"But ultimately these are decisions that are to be made by the folks there.''
A former youth football scout has been arrested by police investigating allegations of historical abuse in the sport.
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A Royal Navy helicopter pilot has paid a flying visit to his former aircraft to see its transformation into an unusual holiday home near Stirling.
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