The Guardian writes that global warming doesn't affect only our land, but also our waters, especially the deep parts, thus two thousand meters below the surface, the temperatures of our seas have been continuously increasing. Usually, on land and at the surface of our waters, the temperature tends to fluctuate depending on the season and the year, but below, this doesn't seem to be happening.
Dr. Paul Durack, a scientist at the US Department of Energy’s Lawrence Livermore National Laboratory, said that "the ocean captures more than 90% of the imbalance of energy that we’re creating because of anthropogenic climate change."
Since the ocean isn't nearly as reflective as the land, it absorbs most of the heat, instead of dissipating it, which means that since 1971 and up until 2018, our oceans captured the equivalent of more than 25 billion Hiroshima bombs in terms of heat.
While it was only after the 2000s when scientists were able to get reliable data to assess the heating of our oceans, they were also able to track what happened prior to that, through observation and climate models.
Dr Bernadette Sloyan, researcher at Australia’s CSIRO government science agency, said that "when we look at the climate models and compare them with the observations, we get consistent results across that simulated Earth and the real Earth. They’re all showing consistent warming."
The rising of the oceans' temperatures has multiple effect on Earth's climate, she says, as "adding that heat has come with ocean acidification, rising sea levels and changes in the frequency of extreme weather."
"The oceans have stored the problem. But it’s coming back to bite us", Professor Matthew England, an oceanographer and climate scientist at the University of New South Wales, concluded.