For 70 years, the oceans warmed up to an explosion temperature of 3 billion atomic bombs
A new study notes that the amount of heat that has been introduced into the oceans of the planet as a result of human activity over the past 70 years is equivalent to more than 3 billion atomic bombs. Writes about this Fox News.
In a study published in the journal Advances in Atmospheric Sciences, it is noted that the average temperature of the world's oceans in 2019 was 0,075 degrees Celsius (0,135 degrees Fahrenheit) higher than the average in 1981-2010. Scientists have concluded that, collectively, the oceans absorbed a whopping 228 sextillion joules of heat.
“The amount of heat that humankind has put into the world's oceans over the past 25 years matches the heat from the explosion of 3,6 billion atomic bombs,” said Cheng Lijing, lead author of the study. “This measured ocean warming is irrefutable and further evidence of global warming. There are no viable alternatives other than emissions of heat-trapping gases to explain this heating. "
Lijin added that the atomic bomb dropped on Hiroshima (Japan) during World War II had an energy explosion equivalent to 63 trillion joules.
On average, this can be compared to 4 bombs with the energy equivalent of the one that was dropped on Hiroshima, falling into the ocean every second for 25 years. Co-author of the study, John Abraham, said the rate of change is increasing.
“It's important to understand how fast things are changing,” added Abraham, a professor of mechanical engineering at St. Thomas University in a statement. - The key to the answer to this question is in the oceans - this is where most of the heat is stored. If you want to understand global warming, you have to measure ocean warming. "
Abraham added that global warming is “real” and “worsening,” highlighting some of the recent extreme weather events, rising sea levels.
“And this is just the tip of the iceberg,” he said. “Fortunately, we can do something about it: we can use energy more intelligently, we can diversify our energy sources. We can reduce this problem. "
Cheng agreed, mentioning the “catastrophic fires in the Amazon, California, and Australia,” adding that the devastation from the heat associated with human activities, 90% of which is absorbed by the oceans of the planet, continues.
The decade that has just ended was the hottest ever measured on Earth. NASA and the National Oceanic and Atmospheric Administration have estimated 2019 to be the second hottest year in 140 years of record keeping.
According to the Rice Kinder Institute for Urban Studies, high temperatures in the Gulf of Mexico in 2017 led to Hurricane Harvey, a massive storm that killed 82 people and cost $ 108 billion.
In 2018, as a result of a hurricane in Florence, 53 people were killed and damage in the amount of 38 to 50 billion dollars was caused.
A separate study published in 2019 suggested that “almost all” countries will see their economies shrink due to climate change by 2100.
Skeptics have largely dismissed concerns about human exposure to global warming, saying that climate change has been going on since time immemorial. They also argue that the dangers of warming are greatly exaggerated and question the impact that fossil fuels have had on climate change.
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