The Millennium Stadium will join a list of leading iconic landmarks from around the world by switching off its lights at 8.30pm on 28 March to support WWF's Earth Hour .
The multi-event venue in Cardiff joins Rome's Coliseum, San Francisco's Golden Gate Bridge, Buckingham Palace in London, the Sydney Opera House and an anticipated billion people from across the globe in going dark for 60 minutes to demonstrate their support for determined international action on climate change.
The Stadium's green credentials already include collecting rainwater to water the pitch, recycling throughout the Stadium, a "Cycle to Work Scheme" for employees and are currently working along side energy companies to compile an 'Energy Saving Guide' for member rugby clubs to advise ways they can save money by saving energy.
Millennium Stadium Manager Gerry Toms said: "The Millennium Stadium is very proud to be taking part in WWF's Earth Hour and to be joining such a prestigious list of landmarks and buildings in doing so.
"We take environmental issues very seriously at the Stadium and are pleased to be adding to our green credentials by signing up to WWF's Earth Hour initiative. We would like to urge all our member rugby clubs, fans and the people of Wales to take part in switching their lights off for just one hour in a demonstration for action on climate change."
WWF Cymru is delighted that one of the UK's most recognised sporting and music venue will be supporting Earth Hour.
Morgan Parry, Head of WWF Cymru, said: "We are thrilled to have the Millennium Stadium on board and signed up to Earth Hour. Having such a distinguished and iconic landmark which lies in the heart of Cardiff committed to Earth Hour will most certainly make Wales a leading country in Earth Hour 2009 and help make it a successful global event.
"By being involved in this international campaign the Stadium will help WWF Cymru demonstrate to leaders in Wales and across the world that people want them to tackle climate change."
For further information on Earth Hour and how to get involved visit www.wwf.org.uk/earthhourwales.
Principality Stadium will host the UEFA Champions League Final in six weeks' time. WRU chairman Gareth Davies, Football Association of Wales chief executive Jonathan Ford and Ambassador Ian Rush joined young sports fans at the trophy arrival at the venue to celebrate the magnitude of the event on Saturday 3rd June (kick-off 19.45).
British and Irish Lions captain Sam Warburton is looking forward to bringing together players from Ireland, Scotland, England and Wales for the biggest challenge of their careers - a series against world champions, New Zealand.
For the fifth year running, Wales referee Nigel Owens will be in charge of proceedings at Judgement Day V at Principality Stadium. It promises to be 'extra special' for the Wales' favourite ref, as he will be making his 150th appearance in the league.
There will be no shortage of inside knowledge from Bowl Finalists Caerphilly and Amman United when they face each other on Sunday at National Finals Day. Caerphilly hooker Rhys Cleverly knows the Principality Stadium pitch better than most as a matchday groundsman, while Amman United can look to Wales' record try scorer Shane Williams for some helpful advice.
Two hundred and 40 teams competed in the inaugural Urdd WRU 7s held at Pencoed last week with Welsh internationals Steff Andrews and Jasmine Joyce impressed with the talent on display, as was Urdd chief executive, Sioned Hughes.
The countdown is on for Judgement Day V as tickets for the big day at Principality Stadium soar through the 50,000 mark. Players and coaches alike are bursting at the seams to play in the double header with Dragons coach Kingsley Jones claiming there is a 'real buzz' about the event.
WRU TV went behind the scenes when the four regions got together to test their skill set for the BBC's Scrum V Live rugby show, at the WRU National Centre of Excellene in the build up to Judgement Day V. Blues' Matthew Morgan was one of the stars of the show while the Dragons' Cory Hill proved a surprise package...the full set of results will be revealed on tv screens on matchday
Wales assistant coach Richie Pugh is confident his side can cause a few headaches in the Hong Kong Sevens this weekend. In a tough group, Wales kick off their campaign against New Zealand on Friday before playing Japan and Fiji, who are chasing their third consecutive Hong Kong title, on Saturday.
Bedwas had to overcome a stubborn Carmarthen Quins side before winning the Foster's Challenge Cup final in Bridgend with a 23-18 victory. Bedwas captain Nicky Griffiths pays tribute to his side who have claimed the club's first piece of silverware in the modern era.
Team coach Brett Davey is aiming to keep his unbeaten run in cup finals at Principality Stadium intact when his side take on Amman United in the WRU Bowl final, after he guided Caerphilly to a 20-14 win against Cilfynydd in the semi-finals.
Penallta are hoping to go one step further than last season when falling to Bedlinog in the WRU Plate Final. After a titanic struggle against Nant Conwy, they have given themselves a great chance, after a hard fought 18-13 semi-final victory.