The ocean has absorbed about 25 percent of the carbon dioxide released by fossil-fuel burning since the industrial revolution began. This has slowed the pace of global warming—giving us enough time to fix it, we hope. Scientists have speculated for decades that it could be possible to increase the rate of absorption, and now marine carbon dioxide removal efforts are beginning at scale. Oceanographer Jaime B. Palter describes strategies being tested or implemented now to absorb more of the CO2 in the ocean so it can pull more CO2 from our atmosphere, with helpful, elegant graphics.