Pacific and Atlantic southern sections showing upper-ocean warming for the past six decades (1955-2011). Red colors indicate warming and blue colors indicate cooling. Credit : Timo Bremer/LLNL

January 19^th, 2016 (Anne M. Stark, Lawrence Livermore National Laboratory). Lawrence Livermore scientists, working with National Oceanic and Atmospheric Administration and university colleagues, have found that half of the global ocean heat content increase since 1865 has occurred over the past two decades.