Now, a new study offers hope that some coral reefs will survive rising temperatures and oceans. As water temperatures increase and the oceans become more acidic, coral reefs around the world are dying. Others face death by drowning as sea levels rise. But scientists studying coral reefs surrounding Palau, an archipelago in the western Pacific Ocean, have found that they are managing to grow at a rate that keeps pace with sea-level rise. As long as sea-level and temperature increases remain moderate, the coral reefs, also called micro atolls, are likely to survive until the end of the 21st century, the researchers concluded.