The fluctuations resulting from the climate crisis have greatly exacerbated the bad situation.
Today’s world population may think that the repercussions of the climate crisis appeared during the modern era, while it dates back to about a quarter of a billion years ago, when life was exposed to… Planet Earth For a near-final test, when extinction events have devastated Earth’s biosphere, leaving only a few species to try to survive.
This “Great Dying” appears to have been driven by a complex chain of events, with a new study finding that prolonged and severe climate swings much like a modern El Niño undoubtedly made a bad situation much worse.
Using proxies to measure fluctuations in seawater temperatures and updated climate modeling, an international team has developed a simulation of tides in ocean and atmospheric currents over about 250 million years.
After millions of years, marine species began to disappear one by one, until only one in five species remained.
Even today, extreme weather events that lead to floods, droughts, heat waves and cold waves continue to cause widespread environmental losses.
Unprecedented earthquakes
A year ago, in September, scientists around the world observed, earthquake shaking inexplicable, shake Planet Earth For 9 consecutive days, which is too long to be considered a mere earthquake, and the discovery was so unprecedented that some scientists at the time thought there was something wrong with their equipment.
A year after the phenomenon, reports attributed the cause to a fjord in Greenland, where a melting glacier collapsed in a landslide, dumping unimaginable amounts of material into the sea.
The resulting massive tsunami created waves as high as 650 feet, high enough to swallow some skyscrapers.
Based on these results, which were published as a study in the journal Sciencea stark picture of the massive impacts of climate change. In this case, the seismic impact of the tsunami was felt globally.
According to the study’s lead author, Christian Svennevig, a geologist with the Geological Survey of Denmark, he told the network,NBC News“No one has ever seen anything like this before.”
Heat wave
The massive tsunami was spectacular, but the large shaking alone was not enough to explain the seismic tremors that lasted for more than a week.
When the landslides hit the sea, the initial six-hundred-foot wave was trapped inside the narrow strait—an inlet of seawater surrounded by steep cliffs.
With nowhere else to go, the massive tsunami continued to roll back and forth along the valley, settling into a wave about 23 feet high that lasted for several days.
This phenomenon – a standing wave oscillating in an enclosed space of water – is known as a “seishi,” and until now, no one knew that it could last for so long.
“If I had suggested a year ago that a heat wave could last nine days, people would have shaken their heads and said, ‘That’s impossible,’” Svennevg told CNN.
Analyze what happened
It took nearly a year to analyze the event, with the efforts of 68 scientists from different institutions around the world.
They used satellite and ground-based images along with seismic wave analysis to determine how the epic landslide that set it all off unfolded, while creating computer simulations to model the tsunami and earthquake that followed.
But researchers said the main reason behind this was climate change, as rising temperatures weakened the ice mass that caused the landslide.
“It’s a worrying sign” of what’s to come, said Paula Snook, a geologist at the University of Applied Sciences in Western Norway, who was not involved in the study.
“We are thawing land that has been cold and frozen for thousands of years,” she told CNN.
