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.
Earth Hour helps in many ways it saves energy also when you do Earth Hour you realize what you are actually doing to the earth.
There were about 135 countries that took part in Earth hour.
The Earth rotates 14.9590452 degrees per hour.
Because they feel like it...
Because People want to save energy
6,316 people die each hour
15.
4616 cities
15
8,760 Earth hours in one year.
24 hours and 1 day on earth