Earth Hour was on March 30, 2019. Earth Hour is a global movement and a yearly tradition in which people turn off the lights in their home to spread awareness about climate change. This tradition started in 2007 in Sydney, Australia where the World Wildlife Fund also known as WWF encouraged people to turn off the lights. 2.2 million people participated in 2007 and since then has become annual. Famous landmarks such as the Eiffel Tower, Big Ben, the Empire State Building and of course the Sydney Opera House and many others went dark for an hour. 180 countries went dark to celebrate. Among those countries, La Paz, Bolivia held a vigil in honor of Earth Hour.
Earth Hour is intended to unite people to build an eco-friendly future. Climate change is a huge issue that a lot of people need to be aware of. Warmer water temperatures affect the quality of the water that you drink and can increase water pollution. As you can see climate change is a huge problem and Earth Hour helps spread awareness.