Study Says, World's Oceans Were Warmest in 2019

Oceans Hotter Than Ever Before New Study Reveals

The oceans absorb most of the heat trapped by greenhouse gas emissions, making them the clearest measure of climate change. The key to answering this question is in the oceans - that's where the vast majority of the heat ends up.

The effects of global warming are becoming more and more in our lives.

Lijing Cheng, the paper's lead author and an associate professor at the International Center for Climate and Environmental Sciences at the Chinese Academy of Sciences, and his colleagues used a common energy unit, the joule, used in physics to get their measurements. To make it easier to understand, I did a calculation. The Hiroshima atom bomb exploded with an energy of about 63,000,000,000,000 joules.

"The amount of heat we have put in the world's oceans in the past 25 years equals to 3.6 billion Hiroshima atom-bomb explosions".

The new study of ocean heat content strengthens other recent signs of global warming.

"There are no reasonable alternatives apart from the human emissions of heat-trapping gases to explain this heating", Cheng said.

The world's oceans reached record temperatures a year ago caused by the "irrefutable and accelerating" heating of the planet, scientists said in the latest warnings about the affects of climate change.

Researchers found that between 1987-2019, ocean warming was 450 percent greater than during the earlier time period.

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With just 1C of warming since the pre-industrial period, Earth has experienced a cascade of droughts, superstorms, floods and wildfires made more likely by climate change.

Last year's record is already showing in the form of more extreme weather, rising sea levels and harm to ocean animals.

NBCNews cites a professor of thermal sciences at the University of St. Thomas in St. Paul, Minnesota, who said that "The pace of warming has increased about 500 percent since the late 1980s".

As ocean temperatures continue to increase, we can also expect more supercharged hurricanes, since a hurricane's wind speed is influenced by the temperature of the water below. We have the power to reduce this problem.

According to the researchers, people can work to reverse their effect on the climate, but the ocean will take longer to respond than atmospheric and land environments.

The research, conducted by a team of climate and ocean scientists from around the world and published in Advances in Atmospheric Sciences, found that the heating was distributed throughout the world's oceans, however the Atlantic Ocean and Southern Ocean had absorbed the most heat. It is causing marine heatwaves, fuels hurricanes and coastal downpours, increases harmful toxin-producing algal blooms and also contributes to heat waves on land, according to the researchers.

"Blob" in the North Pacific was one such heat wave that resulted in a major loss of marine life between 2013 and 2015.

The fact that the oceans are warming has a whole set of consequences. Recently, the earth observing agency Copernicus announced that 2019 was the second hottest year on record.

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