Every year on April 22nd, a truly global celebration takes place—International Mother Earth Day—a day for our common cozy home. The holiday was established at the 63rd session of the United Nations General Assembly in 2009 (Resolution No. A/RES/63/278, co-authored by more than 50 UN member states) and has been celebrated since 2010 on April 22nd. Earth and its ecosystems are our home, providing life to humanity. Thus, to achieve a fair balance between the economic, social, and environmental needs of present and future generations, it is necessary to promote harmony with nature and the planet Earth. The term “Mother Earth” is widely accepted in many countries and reflects the interdependence between the planet, its ecosystems, and humans. By proposing that all UN member states, international and non-governmental organizations observe “International Mother Earth Day,” the General Assembly draws attention to the fact that this holiday is already celebrated annually in many countries. In the Northern Hemisphere, Earth Day is celebrated in the spring, while in the Southern Hemisphere, it is observed in the fall. The primary goal of this global event is to draw attention to Earth’s problems, its environmental issues, and to raise awareness about the difficult tasks humanity faces in preserving the planet. Nature suffers. Ocean acidification occurs due to plastic pollution. Climate change, anthropogenic alterations in nature, and unacceptable actions that disrupt biodiversity, such as deforestation, changes in land use, the introduction of intensive methods in agriculture and livestock, and poaching, are accelerating the destruction of the planet. Ecosystems support all life on Earth. The healthier our ecosystems, the healthier the planet and its people. Restoring damaged ecosystems can help end poverty, combat climate change, and prevent mass mortality. International Mother Earth Day is a reminder that each of us owes our existence to our planet and its ecosystems. What is our Earth like? It is estimated that the planet Earth is about 4.5 billion years old. If you want to walk around the Earth along the equator, you would have to travel almost 40,010 kilometers. The distance from the surface to the center is 6,378 kilometers. The solid rocks (lithosphere) form a layer of only about 70 kilometers thick, and moving further in, we observe semi-liquid and liquid states. Death Valley in California and a place in Libya called El Azizia hold the records for the hottest spots on Earth. El Azizia’s record is 57.8 degrees Celsius (on September 13, 1922), and Death Valley’s record is 55.8 degrees Celsius (on July 10, 1913). The coldest place on Earth is recognized as Antarctica—on July 21, 1983, a temperature of -89 degrees Celsius was recorded at the Vostok research station in Antarctica. Earth is incredibly rich in minerals—scientists have classified about 4,000 types of minerals, approximately 200 of which have practical significance. Every year, 50-100 types of minerals are discovered. Earth has one natural satellite—Moon, visible to the naked eye. Mother Earth Day on April 22, like Earth Day celebrated on the Spring Equinox, provides an opportunity for every inhabitant in every corner of the planet to express gratitude to our large common home. In Russia, International Earth Day is traditionally considered the day of public organizations, which conduct various ecological events and campaigns on this day. On this day, everyone is invited to participate in the beautification and greening of their yards and streets.