There has been a surge in sea urchins in the waters around Xiaoliuqiu, an island off the southwest coast of Taiwan. It is a popular tourist destination for beachgoers and snorkelers, and the local government is trying to curb the growth of the urchin population ahead of the peak summer tourist season. Conservationists say climate change and warming ocean temperatures may be to blame. Higher temperatures allow for algal blooms to form, which gives sea urchins more opportunities to feed.