Hundreds of world landmarks from Berlin’s Brandenburg Gate to the Great Wall of China went dark last night, part of a global effort to highlight climate change.

The lights will go out in Kinsale, Co Cork, tonight to mark Earth Hour, a global initiative to raise awareness of climate change.

We are being urged to switch off our lights for an hour this evening in a show of concern over climate change.

A SYMBOLIC act guaranteeing vital attention for environmentally friendly policies, or a well-meaning but ultimately pointless move that does nothing to solve a genuine problem?

The lights will go off at Government buildings, Leinster House, the Customs House and the Four Courts at 8.30pm tonight to mark Earth Hour.

The white-shelled roof of the Sydney Opera House fell dark today, one of the first landmarks to turn out the lights in an hour-long gesture to be repeated by millions of people around the world who are calling for a binding pact to cut greenhouse gas emissions.

Millions of people worldwide are expected to switch off their lights this evening for Earth Hour.

TWENTY thousand tonnes of hot air are up for grabs in Waterford, as the Green Party arrives in town today for its annual conference.

SAVE energy but please don’t turn off your TV.

IT used to be one of the life’s simple, taken-for-granted pleasures to stand outside in the blackness of night and just gaze at the star-speckled heavens.

IT was very heartening to see the support from Brigitte Schorn for Earth Hour (Irish Examiner, Tuesday 31 March), and I wish to thank Brigitte and all of the other people who took part in this event, which resulted in increased energy savings in Ireland and around the world.

AS a participant in Earth Hour on Saturday night I stood upstairs in my dark house overlooking the far lights of Cork city, Cobh and Watergrasshill.

ICONIC buildings across Ireland turned their lights off and prevented the release of an estimated 30 tonnes of CO2 into the atmosphere during Earth Hour.

MORE TaxMan than BatMan, Eamon Gilmore nevertheless set himself the super hero-esque task of “rescuing the future”.

From an Antarctic research base and the Great Pyramids of Egypt to the Empire State Building in New York and the Sears Tower in Chicago, illuminated patches of the globe went dark for Earth Hour, a campaign to highlight the threat of climate change.

The floodlit cream shells of the famed Opera House dimmed today as Sydney became the world’s first major city to plunge itself into darkness for the second worldwide Earth Hour, a global campaign to highlight the threat of climate change.

Householders around the country are being urged to take part in Earth Hour.

Labour leader Eamon Gilmore will today use the party’s 64th national conference to rally supporters ahead of the local and European Parliament elections in June.

Stormont's Parliament Buildings should join iconic sites such as the Golden Gate Bridge and Sydney Opera House in staging a 'black-out' to highlight climate change, it was claimed today.

We are being urged to take part in 'Earth Hour' by living in darkness for an hour at the end of the month.

THE accusation of keeping the public “in the dark” is often thrown at the Government, but for Environment Minister John Gormley this time it can do it for real.

Some of the country’s most iconic buildings and landmarks will be plunged into darkness as the Government backs the third annual Earth Hour later this month.

People are being urged to turn off the lights for one hour to show their support for action on climate change.

THE Earth Hour organisers say their aim is to highlight climate change and the effect of conventional electricity generation on the atmosphere.

IRISH businesses have been criticised for not supporting Saturday night’s Earth Hour initiative, aimed at highlighting the need to cut the world’s energy demands.

Eirgrid today urged households and offices to adopt aspects of yesterday’s Earth Hour ethos into their everyday lives by embracing energy saving measures.

Preliminary figures show the Earth Hour campaign to reduce electricity consumption last night was a success.

From the Sydney Opera House to Rome’s Colosseum to the Sears Tower’s famous antennas in Chicago, floodlit symbols of civilisation went dark for Earth Hour, a worldwide campaign to highlight the threat of climate change.

Minister for the Environment John Gormley says people should "switch off and switch on to a new way of thinking" as part of Earth Hour tonight.

DINERS at the Four Seasons in Dublin will be digging into their food by candlelight only tonight as the hotel’s restaurant switches off its lights for a major global environmental campaign.

Diners at the Four Seasons in Dublin will be digging into their food by candlelight tomorrow night as the hotel’s restaurant switches off its lights for a major global environmental campaign.

Two Government ministers have given their backing to an international blackout aimed at saving energy by plunging the country into darkness.

ORGANISERS behind a campaign that saw Sydney impose a one-hour blackout to focus attention on global warming hailed it as a success for taking the equivalent of nearly 50,000 cars off the road.