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Here's some actual data from 2017: https://t.co/VWgqUeRdzf and 2015: https://t.co/ZFamGutXxi They do poorly in years when the sea ice melts early. Is that what you were referring to?
Here's some actual data from 2017: https://t.co/VWgqUeRdzf and 2015: https://t.co/ZFamGutXxi They do poorly in years when the sea ice melts early. Is that what you were referring to?