(London) British researchers warned Thursday that global warming will increase the consequences of large-scale volcanic eruptions, amplifying temporary cooling after this type of event.
“Massive volcanic eruptions will have greater impacts as the climate continues to warm,” researchers from the University of Cambridge and the UK Met Office (Met Office) said in a statement.
According to their study, which will be published in the journal Nature Communications, plumes of ash and gas from major volcanic eruptions would rise higher and higher in the atmosphere, and volcanic material associated with eruptions would spread more rapidly around the world.
The combined effect of these two phenomena will prevent sunlight from reaching the Earth’s surface, which will “amplify the temporary cooling effects” that occur after an eruption, with an increase of about 15%.
As an example, the 1991 eruption of Mount Pinatubo in the Philippines and its plume – the second largest volcano in XXNS Century – shook the entire planet, causing global temperatures to drop by 0.5°C in 1992.
On the other hand, for the small eruptions that occur each year, a strong global warming would reduce 75% of the temporary cooling effects.
According to the researchers, melting ice caps should “increase the frequency and magnitude of volcanic eruptions in places like Iceland”.
“Climate change is not an upcoming phenomenon, it is already here, as the IPCC report published this week clearly shows,” warned researcher Anja Schmidt, co-author of the study.
This report by United Nations climate experts, released on Monday, says global warming is happening much faster than expected, and that humans, who are “undoubtedly responsible”, have no choice but to significantly reduce greenhouse gas emissions, if They wanted to limit the damage.
He also considered it “likely” that at least one major volcanic eruption would occur in the twenty-first centuryNS Century, claiming that it “would lower temperatures for one to three years, especially on Earth, and alter heavy rainfall.”
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