Mona Ainu’u is the minister of natural resources for Niue, an island nation of about 1,600 people in the South Pacific. On Monday, she was reportedly in tears as she reacted to the latest draft produced by the U.N. climate conference, which omitted the words “fossil fuel phaseout.” “My 12-year-old, what am I going to say to her when I come back?” Ainu’u asked. Niue is particularly vulnerable to sea-level rise, which could easily jeopardize its fresh water supplies.That same day, another 12-year-