EARTH HOUR

Earth Hour is an annual international event created by the WWF (World Wide Fund for Nature/World Wildlife Fund), held on the last Saturday of March, that asks households and businesses to turn off their non-essential lights and electrical appliances for one hour to raise awareness towards the need to take action on climate change. It was pioneered by WWF Australia and the Sydney Morning Herald in 2007,[1] and achieved worldwide participation in 2008.

Earth Hour will next take place on Saturday, March 28, 2009 at 8:30 pm, local time.

The event was interpreted as tokenism,[33] and some focused on the reduction of carbon emissions, whether the significant reduction in electricity consumption reported occurred at all, and questionable coverage of the event by the media conglomerate that sponsored it. It should be noted that the Earth Hour is very similar to the grassroots Earth Day Energy Fast, which from 1991 to 2007 proposed going completely without man-made energy each Earth Day. Earth Day Energy Fast was folded in 2007 since the campaign's founder claimed it was "too late" for such a campaign to have meaningful impact.

The United Nations Conference on Climate Change in Bali [34] made clear that signatories to the Kyoto Protocol accept that greenhouse gas emissions reductions of from 25 to 40% are necessary by 2020 to reduce the impact of global warming which is causing sea level rise and numerous other problems. In that context Earth Hour is at worst tokenism or at best creating awareness to lead to further steps like switching to green power from sources such as wind power or solar power and away from electricity produced by burning fossil fuels like coal, natural gas and petroleum.

[edit]
Measurement of reduction in electricity use

According to figures from EnergyAustralia, a local utility, mains electricity consumption for the 2007 event in Sydney was 2% lower during the Hour than would be expected given the time, weather conditions and past four years' consumption patterns. The Herald Sun equated this with "taking 48,613 cars off the road for 1 hour."[35] Critics, most notably Columnist Andrew Bolt, labelled this as "A cut so tiny is trivial - equal to taking six cars off the road for a year".[36] In context, the six cars equates to there being six fewer cars on the road at any given point of time in the day or night. In response to this criticism, the organisers of Earth Hour counter that "If the greenhouse reduction achieved in the Sydney CBD during Earth Hour was sustained for a year, it would be equivalent to taking 48,616 cars off the road for a year."[37] and they also note that the main goal of Earth Hour is to create awareness around climate change issues and "to express that individual action on a mass scale can help change our planet for the better."[37] and not about the specific energy reductions made during the hour being all that's required.

The 10.2% figure was itself challenged in a detailed analysis by David Solomon, a finance student at the University of Chicago. Solomon used eight years of electricity usage data to conclude that the Earth Hour-inspired drop was 6.33%, and that after other potential factors were taken into account, 2.10%, "statistically indistinguishable from zero."[35] In some areas in the Northern Hemisphere, it will be twilight at 8 p.m., removing some of the advantages of the event.[38]

David Soloman claims that 2007 Earth Hour cut Sydney's mains electricity consumption by 2.1%. [35] Earth Hour 2008 was held internationally on 29 March 2008 from 8 p.m. to 9 p.m. local time, marking the first anniversary of the event with many partner cities and individuals around the world participating.

Read more »