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Earth Days reviews the development of the modern environmental movement — from the post-war 1950s and the 1962 publication of Rachel Carson ’s bestseller Silent Spring , to the first successful 1970 Earth Day celebration .
 Rachel Carson
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Rachel Carson