In 2009, the UN General Assembly adopted resolution 63/278, proposed by Bolivia, designating April 22 as International Mother Earth Day, recognizing the Earth and its ecosystems as humanity's common home. The day's roots trace back to the American environmental movement that launched "Earth Day" in 1970, which has since grown into a global phenomenon involving more than a billion people across roughly 190 countries each year. The day reminds the world that humanity is part of nature, not separate from it, and that the continuation of life on Earth depends on maintaining ecological balance. Each year it focuses on a specific environmental issue — such as climate change, plastic pollution, deforestation, or biodiversity loss — calling on governments, businesses, and individuals to take concrete action to protect the planet for future generations. Governments and environmental organizations around the world mark the day with tree-planting campaigns, beach and public-space cleanups, environmental education workshops in schools, and initiatives to reduce plastic consumption.