page_title: Earth Day
section_title: Significance of April 22
hierarchical_section_title: Earth Day / April 22 observances / Significance of April 22
caption_attribution_description: English: May 22, 2014 RELEASE 14-147 http://www.nasa.gov/press/2014/may/nasa-releases-earth-day-global-selfie-mosaic-of-our-home-planet http://www.nasa.gov/content/goddard/2014-globalselfie-wrap-up/ http://www.gigapan.com/gigapans/155294 NASA Releases Earth Day "Global Selfie" Mosaic of Our Home Planet NASA’s “Global Selfie” Earth mosaic NASA’s “Global Selfie” Earth mosaic contains more than 36,000 individual photographs from the more than 50,000 images posted around the world on Earth Day, April 22, 2014. For Earth Day this year, NASA invited people around the world to step outside to take a "selfie" and share it with the world on social media. NASA released Thursday a new view of our home planet created entirely from those photos. The "Global Selfie" mosaic was built using more than 36,000 individual photographs drawn from the more than 50,000 images tagged #GlobalSelfie and posted on or around Earth Day, April 22, on Twitter, Instagram, Facebook, Google+ and Flickr. The project was designed to encourage environmental awareness and recognize the agency's ongoing work to protect our home planet. Selfies were posted by people on every continent and 113 countries and regions, from Antarctica to Yemen, Greenland to Guatemala, and Pakistan to Peru. The resulting global mosaic is a zoomable 3.2-gigapixel image that users can scan and explore to look at individual photos. The Global Selfie was assembled after several weeks of collecting and curating the submitted images. "With the Global Selfie, NASA used crowd-sourced digital imagery to illustrate a different aspect of Earth than has been measured from satellites for decades: a mosaic of faces from around the globe," said Peg Luce, deputy director of the Earth Science Division in the Science Mission Directorate at NASA Headquarters, Washington. "We were overwhelmed to see people participate from so many countries. We're very grateful that people took the time to celebrate our home planet together, and we look forward to everyone doing their part to be good stewards of our precious Earth.” The GigaPan image of Earth is based on views of each hemisphere captured on Earth Day 2014 by the Visible Infrared Imaging Radiometer Suite instrument on the Suomi National Polar-orbiting Partnership (NPP) satellite. Suomi NPP, a joint mission between NASA and the National Oceanic and Atmospheric Administration, collects data on both long-term climate change and short-term weather conditions. The Global Selfie mosaic and related images and videos are available at: http://go.nasa.gov/1n4y8qp The Global Selfie is part of a special year for NASA Earth science. For the first time in more than a decade, five NASA Earth Science missions are scheduled to launch in one year. The Global Precipitation Measurement Core Observatory, a joint mission with the Japan Aerospace Exploration Agency, was launched in February. The Orbiting Carbon Observatory-2 is set to launch in July with the Soil Moisture Active Passive mission to follow in November. And two Earth science instruments -- RapidScat and the Cloud-Aerosol Transport System -- will be launched to the International Space Station. NASA missions have helped identify thousands of new planets across the universe in recent years, but the space agency studies no planet more closely than our own. With 17 Earth-observing satellites in orbit and ambitious airborne and ground-based observation campaigns, NASA produces data that help scientists get a clearer picture of Earth's interconnected natural systems. The agency shares this unique knowledge with the global community and works with institutions in the United States and around the world that contribute to understanding and protecting our home planet. For more information about NASA's Earth science activities in 2014, visit: http://www.nasa.gov/earthrightnow
context_page_description: Earth Day is an annual event celebrated around the world on April 22 to demonstrate support for environmental protection. First celebrated in 1970, it now includes events coordinated globally by the Earth Day Network in more than 193 countries.
  In 1969 at a UNESCO Conference in San Francisco, peace activist John McConnell proposed a day to honor the Earth and the concept of peace, to first be celebrated on March 21, 1970, the first day of spring in the northern hemisphere. This day of nature's equipoise was later sanctioned in a proclamation written by McConnell and signed by Secretary General U Thant at the United Nations. A month later a United States Senator Gaylord Nelson proposed the idea to hold a nationwide environmental teach-in on April 22, 1970. He hired a young activist, Denis Hayes, to be the National Coordinator. Nelson and Hayes renamed the event "Earth Day." Under the leadership of labor leader Walter Reuther, the United Auto Workers was the most instrumental outside financial and operational supporter of the first Earth Day. According to Hayes, "Without the UAW, the first Earth Day would have likely flopped!"
context_section_description: Nelson chose the date to maximize participation on college campuses for what he conceived as an "environmental teach-in". He determined the week of April 19–25 was the best bet as it did not fall during exams or spring breaks. Moreover, it did not conflict with religious holidays such as Easter or Passover, and was late enough in spring to have decent weather. More students were likely to be in class, and there would be less competition with other mid-week events—so he chose Wednesday, April 22. The day also fell after the anniversary of the birth of noted conservationist John Muir. The National Park Service, John Muir National Historic Site, has a celebration every year on or around Earth Day (April 21, 22 or 23), called Birthday-Earth Day, in recognition of Earth Day and John Muir's contribution to the collective consciousness of environmentalism and conservation.
  Unbeknownst to Nelson, April 22, 1970, was coincidentally the 100th anniversary of the birth of Vladimir Lenin, when translated to the Gregorian calendar (which the Soviets adopted in 1918). Time reported that some suspected the date was not a coincidence, but a clue that the event was "a Communist trick", and quoted a member of the Daughters of the American Revolution as saying, "subversive elements plan to make American children live in an environment that is good for them." J. Edgar Hoover, director of the U.S. Federal Bureau of Investigation, may have found the Lenin connection intriguing; it was alleged the FBI conducted surveillance at the 1970 demonstrations. The idea that the date was chosen to celebrate Lenin's centenary still persists in some quarters, an idea borne out by the similarity with the subbotnik instituted by Lenin in 1920 as days on which people would have to do community service, which typically consisted in removing rubbish from public property and collecting recyclable material. Subbotniks were also imposed on other countries within the compass of Soviet power, including Eastern Europe, and at the height of its power the Soviet Union established a nationwide subbotnik to be celebrated on Lenin's birthday, April 22, which had been proclaimed a national holiday celebrating communism by Nikita Khrushchev in 1955.
caption: Global selfie – Earth Day, April 22, 2014.
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