The Galapagos Archipelago is a model of conservation in the Pacific Ocean. Its remarkable diversity of marine species is explained by the upwelling of cold ocean currents. But an increasingly common climatic anomaly occuring far out to sea is killing life. It's El Niño. Scientists believe that climate change could cause the frequency and severity of this climatic phenomenon to double threatening native species that are unique in the world. In French Polynesia, biologists are studying corals and working to predict the impact of climate change on the future of our oceans and on global food security.