Giving Compass' Take:
- Research shows that the world's oceans are warming at a rapidly increasing pace and the heat is having devastating effects on marine life and intensifying extreme weather.
- The article states, "in 25 years, the oceans have absorbed heat equivalent to the energy of 3.6 billion Hiroshima-size atom bomb explosions." What can we do to stop ocean warming?
- Read more about addressing ocean warming.
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Last year, the oceans were warmer than any time since measurements began over 60 years ago, according to a study published Monday in the journal Advances in Atmospheric Sciences.
While global surface temperature measurements go back farther in time, the measurement of ocean heat content is considered one of the most effective ways to show how fast Earth is warming because more than 90 percent of the heat trapped by greenhouse gases goes into the oceans.
The new study, the first to analyze ocean temperatures for 2019, was based on two independent data sets and used a new way of filling data gaps to measure ocean temperatures going back to the 1950s.
When the scientists compared ocean temperature data from the last three decades (1987-2019) to the three decades before that (1955-1986), they found the rate of warming had increased 450 percent, "reflecting a major increase in the rate of global climate change."
Measured by a common energy unit used in physics, the oceans absorbed 228 sextillion joules of heat in the past 25 years. That's equivalent to adding the energy of 3.6 billion Hiroshima-size atom bomb explosions to the oceans, said the study's lead author, Lijing Cheng, with the International Center for Climate and Environmental Sciences at the Institute of Atmospheric Physics.
It's "irrefutable proof of global warming" that leaves no other explanation aside from the effects of human-caused heat-trapping greenhouse gas pollution, Cheng said.
Read the full article about ocean warming by Bob Berwyn at Inside Climate News.