Asia News International: Scientists have revealed that until recent improvements occurred in the observational system in the early 21st century, Southern Hemisphere ocean heat content changes were likely underestimated. Lawrence Livermore scientists used a fleet of miniature research vessels (Argo), the global flotilla of more than 3,600 robotic profiling floats, that point towards heating of the upper layers of the world's ocean currents. The team found that the 3,600 Argo floats currently observing the global oceans,...