Since its origins, around 4.5 billion years ago, the Earth has been undergoing changes due to all its dynamism. Thus, the geological time scale shows the main impacts caused, above all, by climate change.
Our planet is always changing, and this can sometimes cause damage and pose risks to life forms. It is no surprise that geological eras are marked mainly by mass extinctions.
Nowadays, in addition to the planet’s natural dynamism, human consequences help to intensify climate events around the world.
New scientific discoveries also reveal a worrying reality about the melting of ice in West Antarctica.
Antarctic melting is a global warning
Scientists analyze ice in West Antarctica and surprise results – Image: University of Cambridge/British Antarctic Survey/Reproduction
A recent study, published in the journal Nature Geoscience, analyzed evidence taken from a 610-meter-long West Antarctic ice core.
After analysis, the collected material revealed that around 8,000 years ago the ice sheet in this region shrank suddenly and dramatically.
Over 200 years, a short period of time from a geological point of view, part of the ice sheet shrank by 450 meters.
For comparative purposes, this height surpasses the famous American skyscraper Empire State, which is approximately 380 meters.
This is the first direct evidence of such rapid ice loss anywhere in Antarctica, the study authors highlighted.
The research, led by Eric Wolff, a glaciologist at the University of Cambridge, revealed that the ice sheet retreated and became thinner rapidly in the past, highlighting the threat that this process could repeat itself.
The shrinkage has alarming implications for sea level rise around the world, as the West Antarctic Ice Sheet has enough water to raise ocean levels by up to five meters, resulting in devastating floods in several coastal communities.
Scientists drilled the ice core at Skytrain Ice Rise, located at the edge of the ice sheet, to analyze climate change over the millennia.
The data indicated not only how quickly the ice was shrinking, but also West Antarctica’s vulnerability to climate change due to the downward tilt of the land beneath the ice sheet.
The alarming findings highlight the urgency of tackling environmental problems and finding solutions to stem the melting of ice in Antarctica.
With the continuous increase in global temperatures, studies like this are essential to understand the consequences of global warming and guide policies and preventive actions.
Faced with growing awareness about climate change and the melting of ice in Antarctica, the scientific community reinforces the importance of acting quickly to avoid an environmental crisis of global proportions.
2024-02-17 22:44:06
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