On March 23, 2014, researchers and water managers plan to bring some water—and, hopefully, some life—back to the Lower Colorado River. The floodgates at a diversion dam near the U.S.-Mexico border will be opened, sending a pulse of water rushing toward the delta once again. The “pulse flow” from Morelos Dam is intended to simulate spring floods of the past. After the water subsides, ecologists expect to see a wave of green emerge, as the fresh water flushes away salts and helps cottonwood and willow seeds germinate.