The city of Baotou, Inner Mongolia saw hundreds of people turning out for evening run under the fluorescent lighting at a grassland park to celebrate Earth Hour, on March 19, and to promote a healthy, low-carbon lifestyle and call for public assistance in environmental protection.

For Earth Hour the lights are turned off around the world to support renewable energy to fight climate change. The event has been taking place since 2007 to push for a sustainable future for the planet.