A council which has cut its annual carbon footprint by 50,000 tonnes over 15 years has won an environmental award.
Durham County Council scooped the Best Carbon Reduction prize at the Investors in Environment Awards for its efforts.
Much of its reduction is down to the use of green technology such as wind turbines, solar panels and battery storage.
Councillor Mark Wilkes said the council's green projects allowed it to "save money and save carbon".
A large part of the reduction has been achieved by switching its buildings to renewable energy, some of which is produced using the council's own infrastructure.