A sharp spike in Greenland temperatures since 1995 showed the giant northern island 2.7 degrees (1.5 degrees Celsius) hotter than its 20th-century average, the warmest in more than 1,000 years, according to new ice core data.
A sharp spike in Greenland temperatures since 1995 showed the giant northern island 2.7 degrees hotter than its 20th-century average, the warmest in more than 1,000 years, according to new ice core data.
It takes years to analyze ice core data. Hoerhold has new cores from 2019 but hasn’t finished studying them yet. She expects the temperature rise to continue as Greenland’s ice sheet and glaciers have been melting faster recently. The jump in temperature after 1995 is so much larger than pre-industrial times before the mid-19th century that there is “almost zero” chance that it is anything but human-caused climate change, Hoerhold said.
Ice core data for years showed Greenland acted a bit differently from the Arctic. That’s likely because of Greenland blocking, Hoerhold said. Other scientists said as a giant land mass Greenland was less affected by melting sea ice and other water factors compared to the rest of the Arctic, which is much more water-adjacent.
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