What becomes of the 1.5°C goal now that global warming is approaching that level?🌍🔥🌡️

In a new @science.org Policy Forum we explain how the 1.5°C goal remains a critical legal & ethical benchmark, even as the world nears and may soon exceed 1.5°C of global warming🧵1/
www.science.org/doi/10.1126/...

For those part of the #EGU bubble: Join CL3.2.1 on Tuesay at 8:30 in Room 0.31/32: Towards net zero and beyond: remaining carbon budgets, negative emissions, mitigation pathways and implications for society.
I have the pleasure of kicking it off and there are many great talks afterwards!

The people who produce this Mauna Loa atmospheric CO₂ record have a lab in Hilo, Hawaiʻi, about 50 miles (80 km) from the observatory. By closing the lab, it'll be really difficult to maintain the CO₂ observations.

Optimist: the cup is half full

Pessimist: the cup is half empty

Net zero policy: No, the cup isn't empty! According to the baseline established when the cup was half full and factoring in the drink which Dave definitely owes me, we can continue drinking at current rates for the forseeable future.

Alice Weidel nennt Universitäten "queer-woke Kaderschmieden" und sagt: "Wir schließen alle Gender Studies und schmeißen alle diese Professoren raus".
Die Naturwissenschafts-Community muss sich hier klar auf die Seite der Geistes- & Sozialwissenschaft stellen. Das ist ein Angriff auf alle. (Thread)

With all the news about the latest data showing that temperatures in 2024 were 1.6°C warmer than pre-industrial levels, many have asked what this means for the 1.5°C of the UN Paris Agreement.

A short 🧵that aims to distinguish the signal from the noise (1)

In erschütternden Breaking-News-Situationen ist es immer sinnvoll, sich diesen Ratgeber vor Augen zu führen - von @onthemedia.bsky.social #Magdeburg

Very interesting post and opinion piece on climate policy. Focus on the US – but I think it's relevant for Europe, too:
"... create durable economic incentives that would survive political transitions. When decarbonization becomes good business, it becomes harder to dismantle climate progress."

Windkraft, Wärmepumpen und E-Busse sind übrigens genauso wenig linksgrün wie elektrisches Licht und elektrisches Kochen. Sie sind schlicht am effizientesten und setzen sich deswegen über kurz oder lang ohnehin durch.

Die Frage ist eigentlich nur, ob da dann überall "made in China" draufsteht.

Hat jemand eine Idee, wie es in anderen Bundesländern ausschaut, oder auch in der Schweiz?

A visual illustration of the case for geological net zero.

Softening the definition of Net Zero won’t stop global warming. As authors of the 2009 “Net Zero Papers” we call on countries and companies to recognise the need for Geological Net Zero, balancing flows of carbon into and out of the Earth’s crust.
www.theguardian.com/environment/...

Here is a starter pack of scientists based in Switzerland🇨🇭active in climate/environmental research (in nat. & soc. sciences) @retoknutti.bsky.social @robertfinger.bsky.social @jksteinberger.bsky.social @rarohde.bsky.social @florianaltermatt.bsky.social @kariningold.bsky.social
go.bsky.app/5cJemte

The phaseout of sulfur in marine fuels in 2020 remains a part of the explanation for the weirdness we experienced in the latter half of last year, but far from the full one. For more, check our our new post over at The Climate Brink: www.theclimatebrink.com/p/a-problema...

Renewable energies are not the main driver of biodiversity loss. It is rather the other way round: renewables can limit climate change in order to preserve biodiversity. Cyril Brunner contextualises the trade-​offs from a scientific perspective.