Assertion: adelie penguin's colony | /r/CapableOf | affect 40 percent
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text: A 2010 paper by Adélie expert David Ainley and colleagues warned that, if Earth’s temperature reaches two degrees Celsius above pre-industrial levels (projected, in the same paper, to occur between 2025 and 2052), Emperor and Adélie colonies north of 70 degrees south would decline or disappear, affecting 40 percent and 70 percent of their respective breeding populations.