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Although I accept the conclusions of the scientific community , I feel quite a bit of shame for the behavior of my generation not having done more to educate people about climate change . {@Greta Thunberg@} drove the point home in her scathing takedown of the establishment .
 climate change, Greta Thunberg
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: group, creative work, person, event, product, location, corporation 
Text: {0} 
Answer:
 climate change, Greta Thunberg