Earth Hour 2009 was carried out across 25 time zones, and involved 4000 cities in 88 countries.
There were about 135 countries that took part in Earth hour.
The first Earth Hour took place in Sydney, Australia. The second Earth Hour took place in New York City, in the USA. There are as many as 38 countries participating today.
Earth Hour 2009 was considered to be a huge success. It was held across 25 time zones, in over 4000 cities within 88 countries worldwide. Hundreds of millions of people were involved. WWF International Director General James Leape was quoted as the website link below as stating, "Earth Hour 2009 was an incredible success." Not only was the "lights out" campaign successful in being picked up by so many cities, many people also took advantage of the opportunity to have their voices heard prior to the December 2009 Copenhagen Climate Change Conference by voting on Earthhour.org.
In 2011 133 countries and regions signed up for the event this year, with 13 of them taking part for the first time.
In 2009, there were 195 countries in the world.
Earth Hour is estimated to involve hundreds of millions of people in over 180 countries who participate by turning off non-essential lights for one hour to raise awareness about climate change. The exact number of participants can vary each year.
There are over 1 million people who partisapat in earth hour per year
195 countries
Countries in the World are 195 in 2023
193
The Earth rotates 14.9590452 degrees per hour.
In 2009, there were players from 61 countries.