More than 90% of the heat trapped by humanity’s greenhouse gas emissions has been absorbed by the seas, with just a few per cent heating the air, land and ice caps respectively. The vast amount of energy being added to the oceans drives sea-level rise and enables hurricanes and typhoons to become more intense. Much of the heat has been stored in the ocean depths but measurements here only began in recent decades and existing estimates of the total heat the oceans have absorbed stretch back only to about 1950. The new work extends that back to 1871. Scientists have said that understanding past changes in ocean heat was critical for predicting the future impact of climate change. A Guardian calculation found the average heating across that 150-year period was equivalent to about 1.5 Hiroshima-size atomic bombs per second. But the heating has accelerated over that time as carbon emissions have risen, and was now the equivalent of between three and six atomic bombs per second. obviously, we are putting a lot of excess energy into the climate system and a lot of that ends up in the ocean. There is no doubt.” The total heat taken up by the oceans over the past 150 years was about 1,000 times the annual energy use of the entire global population. The research has been published in the journal Proceedings of the National Academy of Sciences and combined measurements of the surface temperature of the ocean since 1871 with computer models of ocean circulation. Rising sea level has been among the most dangerous long-term impacts of climate change, threatening billions of people living in coastal cities, and estimating future rises is vital in preparing defences. Some of the rise comes from the melting of land-bound ice in Greenland and elsewhere, but another major factor has been the physical expansion of water as it gets warmer                                                      https://www.edie.net/news/9/Global-warming-of-oceans-equivalent-to-an-atomic-bomb-per-second/