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Annual event
Earth Day is an annual event on April 22 to demonstrate support for environmental protection. First held on April 22, 1970, it now includes a wide range of events coordinated globally by EARTHDAY.ORG (formerly Earth Day Network) including 1 billion people in more than 193 countries. wikipedia.org
In a study conducted by the journal Science, scientists estimate that 8.8 million tons of plastic enter the ocean every year, threatening over 700 species of marine animals. (source: National Geographic)