Heatwaves Discovered in Deep Ocean Impact Carbon Storage.

Scientists at NOAA have discovered that marine heatwaves can occur deep underwater, sometimes in tandem with heatwaves that ripple across the ocean surface or else when there is no detectable warming signal above. These so-called bottom marine heatwaves can be more intense and last longer than hot spells at the ocean surface, though it varies from coast to coast. The researchers say their results underscore the importance of maintaining long-term ocean monitoring systems, especially as scientists are only just beginning to appreciate the impacts of bottom marine heatwaves.