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Environment

Earth Hour

Earth Hour wins top environmental award

Earth hour logo . The campaign that encouraged people to turn off their lights for an hour to raise awareness about climate change has won a national environmental award.

Women embrace Earth Hour, men find it a turn-off

Earth hour logo . Almost two-thirds of women took part in Earth Hour but men, especially those aged over 55, were less convinced by the event new research shows.

Our big turn-off could get bigger

Organisers plan for 1 billion to take part in next year's Earth Hour after the success of this year's event.

Our gift to the world

Sydney At least 50 million people made a clear statement against climate change over the weekend when lights went off around the globe for Earth Hour.

River crowd basks in light of a glowstick

As Earth Hour went global for the first time, Sydneysiders turned out to grassroots events.

City slickers are the best flickers

Australian energy use fell sharply for Earth Hour, although Sydney used more power this year than last.

Oh say, do you see in the dark?

During Saturday's Earth Hour, Chicago's lights dimmed and its panoramic skyline was a shadow of itself.

Gloominess next to godliness in spiritual heartland

The grey limestone and stained glass of Canterbury Cathedral sank into darkness as it was used to symbolise a modern plight.

Earth Hour goes global

The event that began in Sydney spreads worldwide, with icons turning out their lights.

Please take a bow, Sydney

Sydney skyline Last night, during Earth Hour, Mother Earth hosted a candlelight supper for a few million close friends.

How we switched on by turning it all off

Let there be dark! Suddenly, at the appointed hour, Sydney's glittering skyline was in silhouette and soft focus.

Lights off! Sydney supports Earth Hour

Sydney skyline Sydney embraced its second Earth Hour tonight, as thousands turned off their lights.

A movement that spans the world

Justin McInerney Electricians Justin McInerney and Tony Bautista are playing their part in Earth Hour on opposite sides of the world.

Pedal-powered rock in Tel Aviv

While Tel Aviv chooses to switch off its lights, the irony is that Gaza has no choice.

From San Francisco to Sydney

At 8pm today, an electrician will climb into his cubicle in the Harbour Bridge and pull the lever that dims its lights.

Sydney flicks the switch

Across the city, Sydneysiders will embrace Earth Hour at 8pm in a variety of ways.

Amid the dark, millions keep an idea alight

Does Earth Hour really work? It depends how you define "work", say organisers, who are honest about the event's symbolic role in the face of some public apathy and scepticism.

Strum for the planet inspired by a rural life

Pete Murray joins musicians and acts including Silverchair in pledging to turn off their lights.

Window by day, light at night

earth hour As the world prepares to switch off for Earth Hour tomorrow, the work of a young Sydney designer may make the light switch redundant forever.

Where being green goes beyond pieties

God is green, and always has been, according to a parish in southern Sydney.

Earth Hour switch-off prompts fire safety warning

Authorities are urging householders to take extra care when switching off their lights for Earth Hour this weekend.

Lights off in a deep freeze

Staff in our remote Antarctic bases are among the most enthusiastic campaigners for cutting energy use, writes Jennie Curtin.

Tie me emissions down, sport, tie me …

Forget the kangaroo, sport. Rolf Harris wants people to tie themselves to Earth Hour's mission.

Helping Earth, no strings attached

Earth Hour The hot air balloon that looked like a light bulb as it hovered over Sydney yesterday was no ordinary bulb.

The time for action is now

Tim Flannery In 40 years it will be too late to reverse dangerous levels of climate change, writes Tim Flannery.

Making changes you can bank on

Inspired by Earth Hour, companies are looking at ways to improve their environmental and financial sustainability, writes Jennie Curtin

Green light for dark dining

Turning the lights out for Earth Hour doesn't have to mean dithering in the dark.

Test driving a green life

Trying to offset four footprints is a complex balancing act, writes Tim Elliott.

Earth hour goes global

Sydney started it and now the world has followed, writes Ben Cubby.

Sister action

Eco-aware twins Imogen and Freya Wadlow state their case for change.

The next generation

The environment has a firm place in the minds - and education - of young people, writes Nick Galvin.

Hit the lights, for Earth's sake

It all started in Sydney - and now the rest of the world is joining in.

Find electricity savings of 5 per cent

Businesses are realising that cutting energy use makes great sense, writes Steve Dow.

The big turn-off

Here's what to expect from the city skyline during Earth Hour.

Design for life in an hour

It's not just about one event, it's about long-term change, writes Jennie Curtin.

Make it a date

What will you be doing? Jonathan Dart looks at a few ideas to make it a night to remember.

Action begins at home

Three families have brought eco-friendly measures into everyday life, write Kerrie O'Brien and Nick Galvin.

Two leaders have seen the light

The Premier, Morris Iemma, has accused critics of Earth Hour of peddling "utter rubbish".

Pedal pushers consider power of the hour

The success of Earth Hour's international expansion has motivated those working in area such as bike riding.

'Sceptics must join Earth Hour'

earth hour The NSW Premier, Morris Iemma, accuses critics of Earth Hour of peddling "utter rubbish" at the launch of the event.

Fastest on the off

Cathy Freeman almost two lights a second as part of an ad for Earth Hour

Seeing the light on the dark side

Peter Garrett. Two million people can't be wrong. The Federal Government is joining Earth Hour, which last year led to 2.2 million Sydneysiders turning off lights for an hour.

Earth Hour: world's cities see the light

earth hour Sears Tower and the Golden Gate Bridge have joined landmarks that will have their lights switched off during Earth Hour.

More sign up to switch off

Eight more international cities have signed up to this year's Earth Hour, bringing to 24 the number of major centres pledging to take part.

Measure by measure

Kate Callaghan One family found it was relatively easy to cut power use and cost, writes Peter Hawkins.

Switch-off goes global

The idea of an hour without the use of electricity has been embraced by many cities since Sydney's blackout last year, writes Jennie Curtin.

Big names take shine to saving planet

Cate Blanchett Australians in the limelight are among Earth Hour's strongest supporters, writes Jennie Curtin.

Teach your parents well

We're pretty good at saving power, but we reckon we can still reduce it even more by another 5 per cent, says Freya Wadlow.

Man who taught San Fran to flick the switch

Nate Tyler Earth Hour in Sydney inspired Nathan Tyler to do the same in San Francisco, writes Erin O'Dwyer.

Earth Hour pledges circle the world

Earth Hour is continuing to grow, with 15 cities around the world now pledging to switch off their lights.

hVideos

Pete Murray rocks

Nature provides light show for Earth Hour in Sydney.

hPhotos

Lights out

People all across Sydney turned off for Earth Hour.

hOpinions

Hooked on killing

The catch is fishing could be cruel, writes Bidda Jones.