R. Saravanan

Howdy! I'm attending #AtmosphereConf in person Saturday+Sunday. I'll be talking about my newspaper-like curating client SkyLimit at 4:20pm on Sunday (Rm 2301): atmosphereconf.org/event/xX5yRJr Feel free to DM me to meet or chat. More here: blog.skylimit.dev/p/skylimit-a... @atmosphereconf.org

Time for 2026 updates to my annual “opinions about solar” thread, now with storage. If you like these, you might like edition 2 of my book, Solar Power Finance Without The Jargon. A 30% discount code WSQ0437 is valid on publisher website til end of Nov 2026. www.worldscientific.com/worldscibook...

Texas A&M Atmospheric Sciences @tamuatmo.bsky.social is searching for a new mid/senior faculty position. Feel free to reach out to me if you have questions. apply.interfolio.com/191450

Does anyone have informed perspectives on this paper? Seems important if true, important to refute if false. "Our results provide the first observational evidence that low clouds have partially offset recent warming, ... " agupubs.onlinelibrary.wiley.com/doi/10.1029/...

New research by Yonsei University, comment by @sarava.net, story by @hannah-richter.bsky.social.

1/ After seeing a lot of Polymarket videos on social media, my @WSJ colleagues and I wanted to understand Polymarket’s marketing. After watching a bunch of videos, we noticed that the website featured in them was almost, but not quite, identical to Polymarket’s actual platform.

New (open access) research led by Dmitri Kalashnikov on Western U.S. sub-daily precipitation extremes, and associated trends. We both confirm familiar spatiotemporal patterns and find evidence of emerging increases in the heaviest downpours. [Thread]

Yulu Hou and her partner experimented with using ChatGPT to automate marking of undergraduate assignments. Here’s what they learnt go.nature.com/3P2M9M5

If anyone wants to read an excellent oped in the New York Times by Matt Huber, let me suggest you start with this one. www.nytimes.com/2015/06/07/o...

And we are off with the 2026 @tamuatmo.bsky.social @tamuartsci.bsky.social @tamu.bsky.social SEA-Met study abroad program in collaboration the Caribbean Institue for Meteorology and Climatology (CIMH) in Barbados!

⚒️ Article: Stratospheric cooling and amplification of radiative forcing with rising carbon dioxide @lamont.columbia.edu www.nature.com/articles/s41...

1. Antarctic sea ice seemed to resist global warming for decades. While Arctic sea ice declined rapidly, Antarctic sea ice showed no clear overall loss and even expanded between 2007 and 2015. Then, after mid-2015, it changed abruptly. www.science.org/doi/10.1126/...

India’s economy expanded 7.5% in 2025, but India’s fossil CO2 emissions rose by just 1.1%—far lower than the 4.1% average over the previous decade. What is going on? www.ecpulse.in/snapshots/ap... 1/

Who's going to buy into the gigantic IPOs of companies with no profits and questionable paths to profitability, such as SpaceX and OpenAI? You will, through your employer's retirement plan, writes @jmackin2.bsky.social www.wsj.com/finance/stoc...

No notes.

I notice that tipping points (AMOC shutdown being the perennial favourite) are increasingly being used to justify development of dangerous and destabilizing geoengineering schemes. While there are interesting questions to address regarding tipping points, the excessive

Carbon Dioxide Removal (CDR) in the next two decades is a rounding error compared to emission reductions. If CDR fails we are still close to net zero, but if emission reductions fail we have zero chance of net zero! Don't agree much with this article www.nature.com/articles/d41...

@knubez.bsky.social of Texas A&M University has published a review article on African Easterly Waves, which can serve as precursors to Atlantic hurricanes. headlines.ametsoc.org/2026/04/25/a...

🌍🌐 Using AI for Earth system modelling for improved weather and climate predictions. Within the EU’s DestinE initiative, ECMWF together with partners, is extending ML-based weather towards representing the full Earth system. Discover our new page: destine.ecmwf.int/ml-earth-sys...

It's not often that I look at a climate monitoring graph and go WTF?, but this is one of those moments. Did the land average temperature difference between daily maximum and daily minimum temperature really go sharply lower in 2025?

Great article in the @nytimes.com by @robinsonmeyer.bsky.social about the electricity challenge of the future. Lots of data, I love it. 🎁 link: www.nytimes.com/interactive/...

I spoke with @ewolffwx.bsky.social about the importance of weather balloon observations on Weather Realness this week! Weather Realness is a production of the U of I's Department of Climate, Meteorology & Atmospheric Sciences and Illinois Public Media. will.illinois.edu/weatherrealn...

Oh look. Another “really bad idea” to fix climate change. 🎁 www.nytimes.com/2026/04/24/c...

Might also help to point out that climate science research now gets way more discussion over here (and strongly suspect this is true of earth science in general given the active bsky geo community) ⚒️🧪

What does it mean to be a “digital meteorologist” in today’s world? Joe Martucci, the first Certified Digital Meteorologist, is helping shape the future of weather communication. In AMS Headlines, he shares insights on digital media, AI, and community-focused forecasting: https://bit.ly/4tJwzEh

On The Climate Brink, I've posted another draft chapter from my upcoming book on climate risk. The chapter is on Transition Risk. www.theclimatebrink.com/p/transition...

New source of temperature data bias: Polymarket? Polymarket lets people bet on daily temperatures from some official weather stations. Now Meteo-France alleges someone used an artificial heat source to manipulate the readings at CDG and win bets. www.bfmtv.com/police-justi...

Classic study gave 146 economist teams the same dataset & got wildly different answers New paper reruns it with agentic AI. Claude Code & Codex land near the human median but with far tighter dispersion & no extremes This suggests that agentic AI is now useful for doing scalable economics research

This is my favorite climate change chart. Japanese monks, aristocrats, and emperors kept meticulous records of cherry blossom festivals for 1,200 years and accidentally built the world's longest climate dataset.

⚡In our most recent Clear Skies Ahead episode, we talk to Steve Bennett, Head of Climate and Catastrophe Science at Mercury Insurance. 🎧 Listen to the podcast here: https://bit.ly/3F90sJz

It feels so weird to hear people say they use LLM to summarise a paper when the ABSTRACT exists - it's already been summarised for you! If there's something you want to find out from the paper which isn't in the abstract, then maybe you should READ IT

Dear Friends, Please send this to your networks. Project Drawdown is offering full-time, paid (with benefits) fellowships to scientists and engineers working on climate solutions in the public interest. Deadline is April 17. drawdown.org/careers/clim...

Overton xkcd.com/3230/

AI summaries for Google search are particularly insidious because pre-AI snippets came with the website details, and I could do a quick scan to find the most trustworthy website to pick an answer from. Now not only are the search results tanked, but also impossible to reliably do a "quick" search.

A single line in this piece just made my day: “The electricity system operator is understood to be preparing to run the grid without any gas for short periods as soon as this summer, in a first for the UK energy system.” Renewables *work*. And progress matters🎉 www.theguardian.com/environment/...

Howarth and Jacobson respond to Zeke's post. They ignore his substantive argument about the merits of GWP-20, focusing instead on the importance of near-term climate action. But the case for GWP-20 shouldn't rest whether we like the policy outcomes it produces. www.howarthlab.org/docs/GWP20_i...

Coding with LLMs like Claude Code is fun and fast, but for scientific codes one has to be super careful that the LLM did not mis-interpret your intention which is always stated with some ambiguity. (1/2)

New: The April update to the ECMWF seasonal forecast shows an even greater likelihood of a strong El Niño later this year. A few ensemble members go to +3.5 °C anomaly in the Niño 3.4 region!

This is excellent. I choose not to use AI for my writing, but Naomi's piece reminds me that I'm in no position then to make uninformed judgements about its potential.

Yeah. Relying on AI too much makes you dumb. arstechnica.com/ai/2026/04/r...

Work with me! Earth, Environmental and Planetary Sciences at Brown University invites applications for a Doherty Postdoctoral Fellowship in Ocean Sciences. This competitive postdoctoral fellowship will be awarded for a one-year period, + 2nd year possible. Please see apply.interfolio.com/183855!

Hey, I wrote a thing about AI in astrophysics ergosphere.blog/posts/the-ma...

Trump regime again tries to shutter all NOAA labs in its 2027 White House budget. open.substack.com/pub/balanced...

My undergraduate Climate class is making Instagram/TikTok-style videos to explain modes of climate variability to non-experts as part of their homework. My graduate Statistics class is making statistics-related memes for extra credit. It's a fun time of year for sure!

Expert observers say they've never seen the IPCC spinning its wheels like this before, just as the world crashes into the 1.5C threshold and climate impacts accelerate ...

🌍🌐 The DestinE AI Tooling Workshop strengthened the technical foundation of advancing machine learning (ML) within the EU initiative. Last month, experts from ECMWF and partner institutions gathered in the Netherlands for a 2,5 day hands-on workshop. Read more ➡️ destine.ecmwf.int/news/destine...

April 1st video from the @tamuatmo.bsky.social social media team, featuring @eniels13.bsky.social. www.instagram.com/reel/DWm1bRk... @tamuartsci.bsky.social