#OceanWarming #ClimateChange

*Earth's Biggest Mass Extinction Reveals Chilling Parallels to Today's World*

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#Via #JessCockerill / #Nature

sciencealert.com/earths-bigges…

"...the findings paint a pretty clear picture.

"The bad news is, 👉we are on track for #Permian-#Triassic levels of warming in worst-case scenario projections👈,"

says #Stanford #EarthScientist #ErikSperling.

"But the good news is,...

cc @kim_harding

Earth's Biggest Mass Extinction Reveals Chilling Parallels to Today's World : ScienceAlert

For the first 280 million years of animal life on Earth, slow-living creatures such as clam-like brachiopods and crinoid sea lilies dominated seafloor ecosystems.

^{Jess Cockerill (ScienceAlert)}

*Earth's Biggest Mass Extinction Reveals Chilling Parallels to Today's World*

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...👉we're still at the point where we can change things and do something about it."👈

When the #GreatDying occurred, temperatures increased by 8-12 °C (46-54 °F) across thousands of years.

In the present day, across just a few hundred years of emissions, temperatures are projected to rise 1.5-4 °C above pre-industrial levels by 2100.. "

[However, some regions,...

@kim_harding

...e. g. #Europe, are warming at a more rapid pace, e. g. the #BalticSea since the start of the #IndustrialRevolution:

"With observed warming of 1.35 °C between 1982 and 2006 that 👉exceeds the global average rate by a factor of seven...👈" (2008)

"The temperature trends show a similar three layers pattern with fast warming at the surface (~ 0.06 K decade− 1) and bottom (> 0.04 K decade− 1) and slow in the intermediate layers (< 0.04 K decade− 1)...." (2008)

@kim_harding

link.springer.com/article/10.1…

However, things have not stayed linear, OFC:

"The acceleration is striking: the last 20 years warmed at double the rate of the preceding 40 years."

sciencedirect.com/science/arti…

👉The total increase since 1850 was
1.65–1.75°C [average].👈

However, this is also not the complete picture.

Take #Kiel in N-#Germany, for instance:

"The temperatures during the #Heatwave [in Spring, 2025] were...

@kim_harding

Warming of Baltic Sea water masses since 1850 - Climate Dynamics

The Baltic Sea is among the fastest-warming seas globally in recent decades affecting biogeochemical conditions such as euxinic areas but also pelagic and benthic marine ecosystems.

^SpringerLink

...👉2.6°C above the 1991-2020 average, with a peak of 4.3°C above average,👈”

said #BSH climate scientist #ClaudiaHinrichs.

cleanenergywire.org/news/water…

//

@kim_harding

Water temperatures in the North and Baltic seas hit record highs in spring 2025 | Clean Energy Wire

^{Clean Energy Wire}