Most climate change discussion focuses on the warmth of the air, but around one-quarter of the carbon dioxide we release into the atmosphere dissolves into the ocean. Dissolved carbon dioxide makes seawater more acidic—a process called ocean acidification—and its effects have already been observed: the shells of sea butterflies, also known as pteropods, have begun dissolving in the Antarctic.
But some pteropod species are proving to do just fine in more acidic water, while others have shells that dissolve quickly. So why do some species perish while others thrive? - Continue reading atSmithsonian.com.
The morning this photo was taken was unusually quiet, Olesen says. “I was about to pack my bags I heard this juvenile Spectacled Spiderhunter (Arachnothera flavigaster) calling ‘chi-chit, chi-chit,’ trying to attract the attention of its parents above while flapping its wings.” Olesen snapped as many shots possible before the bird flew away seconds later. “[It was] the highlight of my Borneo Trip.”