Earth Day is a day to increase awareness and appreciation of the planet’s environment. This day is held twice a year, once during the spring in the Northern Hemisphere (April 22) and during the autumn in the Southern Hemisphere (which is the spring of the Hemisphere). Clean Earth Day is on May 2, and the next day, May 3, is World Earth Day.
The United Nations also celebrates this day every year in the vernal equinox. It was officially introduced by UN activist John McConnell at UNESCO in 1969 and was founded by US Senator Gillard Nelson as an environmental education session. In many countries, April 22 coincides with Earth Day, and many communities celebrate Earth Week at the beginning of Earth Day, devoting the entire week to environmental activities.