I'm finding it a little hard to work today with this in my head.
Antarctic ice extent is now 6.4 standard deviations below the mean. That is, I'm reliably told, a one in 13 billion year event.
We're about to see a lot of shit hit a lot of fans. And we are far from ready.
Business as usual is over. Politics as usual is over. We need to be putting our effort into building systems that can help us survive what greed and power and wilful blindness have wrought.
In der Klimawissenschaft ist ein Kipppunkt definiert als "eine kritische Schwelle, jenseits derer sich ein System neu organisiert, oft abrupt und/oder irreversibel" (Lenton et al., 2008). Hier sind 10 #Kipppunkte, die für uns zunehmend an Bedeutung gewonnen haben.
"Einige der im #IPCC-Bericht erörterten abrupten Klimaänderungen und Kipppunkte könnten schwerwiegende lokale Klimareaktionen nach sich ziehen, wie extreme Temperaturen, Dürren, Waldbrände, Verlust der Eisschilde und Zusammenbruch der thermohalinen Zirkulation.
Es gibt Hinweise auf abrupte Veränderungen in der Erdgeschichte, und einige dieser Ereignisse wurden als Kipppunkte interpretiert (Dakos et al., 2008). Einige davon sind mit bedeutenden Veränderungen des globalen Klimas verbunden, wie z. B. die Interglaziale im Quartär (vor 2,5 Millionen Jahren) und die rasche Erwärmung während des thermischen Maximums im Paläozän und Eozän (vor etwa 55,5 Millionen Jahren; Bowen et al., 2015; Hollis et al., 2019).
Solche Ereignisse veränderten das planetare Klima für zehn- bis hunderttausende von Jahren, aber mit einer Geschwindigkeit, die tatsächlich viel langsamer ist als der projizierte anthropogene Klimawandel in diesem Jahrhundert, selbst wenn es keine Kipppunkte gibt" (IPCC, 2021).
...since starting @ClimateMigration yesterday, the vast majority of Followers are from outside the US. Understand this is not a fun subject, but the disparity in attention to this topic is pretty striking.
My fellow partners in crime aka esteemed #running colleagues probably already know about this event, but I've just read about it for the first time.
A marathon in #Antarctica (or the #Arctic) would be a tempting place ... if it weren't for the hefty price tag, which ranges from USD 21,000 to EUR 55,000 depending on the location and date 😱
Kicking off the #WMO#polar and high mountain regions committee meeting in Oslo this morning. Long pre-meeting on #Antarctica yesterday to determine policy and strategy was pretty successful. Hoping it will get passed by full panel today.
WMO president Celeste Sauto giving us an online welcome. #PHORS24#ClimateDiary
It's a really good thing I don't have room or money (or need) for this... 1986 Hagglund up for auction down the street. "Hansel". Picture from below at McMurdo Station is the sister of Hansel, "Gretel", somewhere roaming around Antarctica. #Antarctica
“The winds will change the ocean, the ocean will melt #Antarctica—and the water is coming to visit you.” If the #ThwaitesGlacier collapses, it could bring much of the Western Antarctic Ice Sheet with it and raise sea levels by over three meters. The potential collapse of Thwaites is among the largest environmental threats to global civilization—and we’ve barely begun to understand it. What took us so long?
An iceberg named A-83, 380 sq km in size, broke off the Brunt Ice Shelf in Antarctica on May 20.
"This calving event results from a prolonged weakening of the ice at the McDonald Ice Rumples and progressive eastward extension of the so-called ‘Halloween Crack’ into the ice shelf."
In 2021, the Brunt Ice Shelf produced an iceberg called A-74 followed by an even bigger berg, named A-81, in 2023.