Tanned and relaxed, 42-year-old Shuichi Endo has set himself a monumental task: Photograph 10,000 residents of the tiny Pacific nation of Tuvalu, nearly the entire population.

He started the project last year to draw attention to the impact global warming is having on the islanders. So far, he has taken pictures of 1,001 people on Nukulaelae and Niutao islands.

"Tuvaluans are happy every day. I don't know if we are happy every day. It would be horrible if Tuvalu sinks into the sea because of carbon dioxide emitted from our unhappy economic life," said Endo, who runs the nonprofit organization Tuvalu Overview, which offers lectures and exhibitions on Tuvalu and organizes eco-tours there.