Thermal retention touched the Earth millions of years ago, with catastrophic results – Al Manar Canal – Lebanon

It is unclear exactly what happened exactly 252 million years ago when the planet experienced a temperature rise, but its results were disastrous, resulting in the disappearance of 90% of the organisms. .

In recent years, scientists have preferred to limit the existential threat of our planet to the impact of asteroids that approach us, but the rocks of space have been repositioned by carbon in the atmosphere .

Scientists in the 1990s thought that asteroid collisions were responsible for five massive extinctions, including dinosaurs, 65 million years ago. Today, they realized that the other four disasters had been caused by the emission of massive amounts of carbon into the atmosphere and the oceans.

One of the worst of these events was the "end of the Permi", a geological age beginning with a volcanic eruption that ignited the carbon-rich deposits and flooded the carbon dioxide atmosphere in a few thousand years. Years, resulting in the loss of 90% of living organisms. .

Thus, the principle that the increase in carbon dioxide not only makes the universe warmer, but rapidly changes the chemistry of the oceans and the atmosphere, causes a rearrangement of the living world.

In total, this also causes chemical changes in the biosphere: fish and plankton failures occurred in the late Permian and the explosion of bacteria contributed to the release of sulfur compounds and methane, Bloomberg said.

"There is a mystery," he said. "Although it was agreed that volcanic activity was at the origin of the formation of so-called Siberian traps," said Seth Burgess, geologist at the US Geological Survey , specialist in the study of the end of the Permian. But these revolutions have failed to release enough greenhouse gases to cause a temperature rise of 10 to 15 degrees Celsius.

Daniel Rothman, a professor of geophysics at the Massachusetts Institute of Technology, said the universe was unable to cope with the rapid rise in carbon, suggesting that current human emissions would only result in a "high" carbon footprint. carbon destruction of carbon only if the volume of the ocean increased to 310 Gt.

The United Nations Intergovernmental Panel on Climate Change (IPCC) estimates that human activity will add 300 to 500 gigatons of carbon dioxide to the oceans by the end of the 21st century.

Source: News from the sky