Today’s global temperature rises ‘unprecedented’ in the last 24,000 years

A study led by the University of Arizona published in a peer-reviewed scientific journal Nature found that global temperatures have risen by a magnitude not seen since the last ice age more than 24,000 years ago.
The study showed that over the past 150 years, since the industrialization of global societies, rates of climate increase exceeded the level and rate of climate change of the past 24,000 years. The study also suggests that temperatures have generally risen over the past 10,000 years and further confirms that the main driver of climate change since the last ice age is anthropogenic, also known as man-made climate change.

“The fact that we are so far from the limits of what we might consider normal today is cause for alarm and should surprise everyone,” said lead study author Matthew Osman, a postdoctoral researcher in geosciences at the University of Arizona.

The researchers modeled temperatures dating back more than 24,000 years using two independent data sets: marine sediment temperature data and computer climate simulations.

“To forecast the weather, meteorologists start with a model that reflects the current weather, then add observations such as temperature, pressure, humidity, wind direction, etc. to create an updated forecast,” Tierney said, adding that the models are they can use to forecast historical weather.

“This reconstruction … suggests that the rate of human-caused global warming is faster than anything we’ve seen in that same time,” warned study co-author Jessica Tierney, an associate professor of geosciences at the University of Arizona.

Prime Minister Naftali Bennett speaking at the COP26 climate conference in Glasgow, November 1, 2021 (credit: CHAIM TZACH / GPO)

The urgency for climate action has grown as scientists and researchers issue seemingly grimmer warnings each year. The 2021 United Nations Climate Change Conference, known as “COP26”, brought together sovereign leaders and dignitaries from around the world to Glasgow, Scotland, from October 31 to November 12, 2021, with the aim of addressing existential problems and forging a new ecological policy. way to go before global warming reaches unacceptable levels.

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