Earth Hour in Edinburgh
Edinburgh Castle will turn green before going black and landmarks ranging from Murrayfield to Edinburgh Central Mosque will be going dark tonight for an hour - Earth Hour - as part of a global show of support for protecting the future of the planet from the ravages of climate change.
Earth Hour began in Sydney in 2007, when 2.2 million homes and businesses switched off their lights for one hour. In 2008 the message had grown into a global sustainability movement, with 50 million people switching off their lights. Global landmarks such as the Golden Gate Bridge in San Francisco, Rome's Colosseum, the Sydney Opera House and the Coca Cola billboard in Times Square all stood in darkness.
In 2009, Earth Hour moved to the next level, with buildings in thousands of cities and towns - including Edinburgh - switching off their lights as part of a global "vote for Planet Earth."
Earth Hour has seen the city dimming trend reach out further across the planet, with 172 countries and territories taking part last year.
Headed by WWF, Earth Hour returns in March, and as before anyone can participate simply by switching off the lights and powering down their energy as a symbolic show of support.
Edinburgh Castle, the Scottish Parliament building, and the Forth Rail Bridge are among the landmark places that go dark each year for the 60 minutes, joining other landmarks such as the Eiffel Tower and Empire State Building.
As well as restaurants and individual activities, many government buildings in the Scottish capital switch off for Earth Hour including St Andrews House, Victoria Quay, Saughton House, Edinburgh City Council's Waverley Court HQ, the City Chambers, the Scott Monument, Calton Hill monuments, Burns Monument, our Dynamic Earth, and St Cuthbert's Church. Another darkening this year will be the stick people of the KEYFRAMES installation in St Andrew Square.
The intention of Earth Hour is to encourage people and government in the drive to reduce carbon emissions.
Scotland currently has some of the most ambitious emissions targets in the world. The Climate Change (Scotland) Act (2009) set a long-term target to reduce emissions of greenhouse gases to 42% by 2020 and by 80% by 2050 relative to 1990 levels.