On Easter Sunday, dozens of tornadoes tore across Southeastern US, killing more than 30 people. The deadly cluster of storms coincided with waters in the Gulf of Mexico that were three degrees Fahrenheit warmer than the long-term average.
Ocean floor expeditions near the site of the 1979 Ixtoc oil blowout seek to find out how the ocean is recovering three decades after the disaster. Scientists hope their work will shed light on the future of the waters near the Deepwater Horizon disaster.