Record heat wave killed half of this Alaska bird population, and they aren’t recovering

An Alaska seabird species faced the worst mortality event in modern history, and the population isn’t rebounding, a study finds. Experts discuss the future implications.

​ An Alaska seabird species faced the worst mortality event in modern history, and the population isn’t rebounding, a study finds. Experts discuss the future implications. Read More Breaking News, Latest News and Videos | CNN