Oceans heating faster than previously thought

Among the painful changes India may have to make is to shut coal plants before the end of their economic lives

Among the painful changes India may have to make is to shut coal plants before the end of their economic lives

A new study has found that the world's oceans absorbed 60% more heat per year than previously believed, findings that could have serious implications in the fight against climate change. The research sends a strong warning about the extent of ocean warming and it signals that the Earth is even more sensitive to fossil-fuel emissions than earlier research has indicated.

The researchers found that the oceans have taken in 13 zettajoules of heat energy each year between 1991 and 2016.

The new research, funded by the Princeton Environmental Institute and the National Oceanic and Atmospheric Administration, estimates that the world's oceans absorbed almost 13 zettajoules of heat each year between 1991 and 2016.

Resplandy said, "Imagine if the ocean was only 30 feet deep". "Our data show that it would have warmed by 6.5 degrees Celsius every decade since 1991".

The Sea of Japan, for example, has warmed around 3 degrees Fahrenheit in the past 100 years, as Reuters recently reported.

In the current study, the team - rather than measuring the temperature of oceans directly - measured the volume of carbon dioxide, oxygen and other gases that escaped the oceans (as they heated) in recent decades and moved into the atmosphere.

Climate sensitivity is utilized to assess passable emissions for mitigation methodologies.

A host of countries, including the USA and China, signed the Paris Climate Accord in 2015, which aims to keep average global temperatures from rising more than 2 degrees Celsius above pre-industrial levels. (3.6?), it is all but certain that society will face widespread and risky consequences of climate change.

Resplandy said the data showed mankind must once again revise down its carbon footprint, with emissions needing to fall 25 precent compared to previous estimates.

"It's not that easy to reliably estimate the whole ocean heat from spot measurements", Keeling said. A network of robotic sensors known as Argo now makes comprehensive measurements of ocean temperature and salinity across the globe, but the network only has complete data going back to 2007 and only measures the upper half of the ocean. The warmer waters also cause sea levels to rise and make extreme weather events like hurricanes more destructive.If scientists can more accurately measure the speed at which oceans are warming, they can better predict the future effects of climate change. As oceans warm, they release oxygen and carbon into the atmosphere, which increases APO. APO additionally is affected by consuming petroleum derivatives and by an ocean process including the take-up of overabundance non-renewable energy source CO2. The changes include reducing fossil fuel use while quickly adopting more sources of clean energy.

These gases dissolve in ocean water and the amount that can be absorbed by the ocean depends on its temperature.

The study was funded by NOAA's Climate Program Office and the Princeton Environmental Institute.

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