In the evening twilight, Diane Cowan, a marine biologist who has been studying lobster behavior and ecology for 30 years, ties up her skiff on the shoreline of Friendship Long Island, Maine, on May 10, 2016. Her life on the island is often dictated by the changing tides - and now, she says, by climate change. Her research has produced data on post-larval and juvenile lobsters that is crucial to understanding the future abundance of lobsters in the state. "I am definitely bearing witness to climate change… For the first 18 years I could predict at least the seasons I had a strong seasonal cycle… And then all of a sudden that was gone because a rapid rise in sea level that change things overnight. And that was like a jolt to me. I should've known. I mean, I read about climate change, I knew the sea level was rising. But until I saw it, until it impacted me directly, I didn't feel it the same way, I didn't understand what it would do," said Cowan. (AP Photo/Robert F. Bukaty)

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