Cloudiness has been declining globally for the last two decades. Why is this and how does it matter for global warming? Read our new article to find out! 👇 doi.org/10.5194/acp-26-4153-2026 And see the @carbonbrief.org post summarising the key findings buff.ly/oLxKacO

Emerging low-cloud feedback and adjustment in global satellite observations

Abstract. From mid-2003 to mid-2024, a global decrease in low-cloud amount enhanced the absorption of solar radiation by 0.22±0.07 W m−2 per decade (±1σ range), accelerating the energy imbalance trend...

doi.org

Carbon Brief@carbonbrief.org · 4mo ago

Guest post: How declining cloudiness is accelerating global warming ✍️ By @pauloceppi.bsky.social Read this new article here ➡️ buff.ly/oLxKacO

📢Submit to our EGU session!📢 We are organizing a session at EGU 2026 in Vienna, with a focus on climate sensitivity, radiative feedbacks and the pattern effect! If you work on anything related to climate sensitivity, we'd love to have you! 🥳🥳🥳 Submit soon! :)

There’s so much happening right now, I thought I’d put together a running thread on the dismantling of #climate and research and knowledge infrastructure in the United States 🧵

🔔BREAKING🔔 The NSF has frozen all research grant awards—cutting off life-saving science midstream and demanding ideological screenings for future funding. This is censorship disguised as oversight. Here’s how you can help us spread the word ➡️🧵(1/3): www.nature.com/articles/d41...

Exclusive: NSF stops awarding new grants and funding existing ones

US science funder also plans to screen grant applications for compliance with ‘agency priorities’.

nature.com

Can climate models reproduce observed trends? The answer can be challenging. Our new review paper in Science Advances led by Isla Simpson and Tiffany Shaw @drshaw.bsky.social discusses challenges and ways forward in confronting climate models and observations. www.science.org/doi/10.1126/...

Scientists & experts: Add your name to this open letter calling on Congress and the Trump administration to ensure that NOAA and its sub-agencies remain fully funded and staffed, and that the independent, trusted science the agency produces is protected. act.ucsusa.org/4kajJuk

Science at Risk: Protect NOAA

Scientists & experts: Add your name to this open letter calling on Congress and the Trump administration to ensure that NOAA and its sub-agencies remain fully funded and staffed, and that the independ...

act.ucsusa.org

Hi - I'd like to share this story of what is happening at NOAA GFDL, where some of my colleagues and I worked until the mass firings at NOAA last week. "...the birthplace of weather and climate forecasting"

NOAA firings hit the birthplace of weather and climate forecasting

Dismissed researchers were improving severe weather predictions

science.org

Have we already breached the 1.5°C global warming target? @tinymaddie.bsky.social speaks to climate experts including @pauloceppi.bsky.social Read more here ⬇️

Have we already breached the 1.5°C global warming target?

Although the climate goals set by the Paris Agreement are based on the long-term average temperature, one year of high temperatures might be a sign that the 1.5°C threshold has already been reached

buff.ly

📢Submit to our EGU session!📢 We are organizing a session at EGU 2025 in Vienna, with a focus on climate sensitivity, radiative feedbacks and the pattern effect! If you work on anything related to climate sensitivity, we'd love to have you! 🥳🥳🥳 Submit soon! :)

Redrawing the global warming stripes. In a new paper led by Sebastian Sippel published in Nature today, we show that the early 20th century global ocean surface temperatures and thereby global mean surface temperature were warmer than previously thought. Thread... (1/13)

For climate-interested people new on bluesky, here is an excellent starter pack of climate scientists to follow from @katharinehayhoe.com @edhawkins.bsky.social @lisaschipper.bsky.social @andrewdessler.bsky.social @rahmstorf.bsky.social @oceanterra.bsky.social go.bsky.app/7Mbnoge

Here is why 2024 is virtually certain be the warmest year on record and first one above 1.5°C 👇

Data released today by Copernicus Climate shows: 🌡️ It is now virtually certain that 2024 will be the warmest year on record. It is also virtually certain that the annual temperature for 2024 will be more than 1.5°C above the pre-industrial level, and likely that it will be more than 1.55°C above.

With the (belated) September data now in, the updated prediction is that 2024 is almost certain to be a new annual surface temperature record, and possibly by more than 0.1ºC. 50% change of exceeding 1.5ºC above the late 19th C.