Graph showing accumulated rainfall in Juiz de Fora, Brazil in the month of February since 1961. It shows 2026 as by far the wettest on record.

New study: Intense rainfall - like the deluge behind Brazil’s recent fatal landslides - will intensify as the planet continues to warm.

Over 70 were killed in the state of Minas Gerais in late February with Juiz de Fora - the worst impacted city - seeing its wettest month on record. 🧵 1/4

Ocean friends going to the @agu.org’s #OSM2026: join us on Tuesday 12:45-13:45 for a Town Hall to update the community on the IPCC 7th Assessment Cycle, featuring a panel of AR7 authors 💡
@goneri76.bsky.social @aromanou.bsky.social @rrrocean.bsky.social @jbsallee.bsky.social @lijingcheng.bsky.social

From Belém #COP30 to Paris #IPCC…

Starting my AR7 journey. The First IPCC Leading Author Meeting is underway in Paris. For the first time, authors from all three working groups are meeting for a full week to review and assess the latest climate research...

When they announced that #COP30 would be in Belém and all the logistical problems that followed, I was convinced it was a bad idea...

On 09/11 flying to Belém, the plane was packed with foreigners talking and laughing... as we approached landing, we could see the forest, silence took over...

Would you #COP30

Title: 10 New Insights in Climate Science: Evidence, Risks, and Solutions

Date & Time: November 10, 2025, 12:00–13:00 BRT
Location: Planetary Science Pavilion, Blue Zone

Speakers: Wendy Broadgate (Moderator), Johan Rockström (Presenter), Regina R. Rodrigues (Speaker), Marina Hirota (Speaker)

On the opening day of #COP30 here in Brazil, we will be launching this year’s “10 New Insights in Climate Science”
@futureearth.bsky.social , The Earth League & @wcrpclimate.bsky.social

If you are attending COP30 in person, please reach out (agenda in the comments)

10insightsclimate.science

This is another webinar organised by @wcrp-clivar.bsky.social Marine Heatwaves Research Focus

🌡️ We will have two fantastic talks by Dr. Amandine Schaeffer & Dr. Neil Malan, followed by a Q&A session

🌡️ Please take a look at the details below on how to register

🌡️ August 25 2025, 23:00 UTC 🌊

Mediterranean summer marine heatwaves triggered by weaker winds under subtropical ridges - Nature Geoscience Reduced winds below subtropical ridges are a key factor in the initiation of summer marine heatwaves in the Mediterranean Sea, according to a statistical analysis of large marine heatwave events.

🌊 www.nature.com/articles/s41...

Our recent paper @natgeosci.nature.com shows that over the Med, marine heatwaves are linked to subtropical ridges rather than atmospheric blocking, the typical cause of atmospheric heatwaves in central Europe.

The brilliant ECRs Giulia Bonino and Ronan McAdam led this work!

🌊Link in the comments.

Also, you can watch our previous webinars here:
www.clivar.org/mhws-webinar...

🌡️ This is another webinar organised by @wcrp-clivar.bsky.social Marine Heatwaves Research Focus

🌡️ We will have two fantastic talks by Dr. Alexa Fredston & Dr. Kathryn Smith, followed by a Q&A session

🌡️ Please take a look at the details below on how to register

🌡️ June 25 2025, 15:00 UTC 🌊

🌊 Last day of the One Ocean Science Congress #OOSC heading to the UNOC3… lots of good science to back up our decisions. #ScienceForTheOcean

Thanks to @jpgattuso.bsky.social for leading this extraordinary meeting and @froeltho.bsky.social for chairing our session on extreme ocean events!

With song and seed, Brazil’s Indigenous Maxakali confront climate change The Atlantic Forest used to blanket Maxakali territory. But as the forest disappears, the group faces intense heat.

Recommended read: @al-jazeera-english.bsky.social ran a long-read about efforts led by Brazil’s Indigenous Maxakali community to protect and restore the rainforest in Minas Gerais.

It was indeed a day of great learning from the discussion about the ocean climate nexus! 🌊

This was a collaborative work between my group in Brazil and @froeltho.bsky.social, Alistar Hobday, Noel Keenlyside, Camila Artana, Friedrich Burger, Afonso Gonçalves Neto, Piero Bernardo, Julia Araújo.

🌊🌡️The frequency and intensity of these triple compound events have increased dramatically over the past two decades, occurring practically every year since 2016. This threatens the capability of marine ecosystems to recover from these compound extremes. Example for the eastern equatorial Atlantic...

🌊🌡️The adverse effects of ocean warming combined with acidification on marine ecosystems can be mitigated by increased food availability. However, this is not possible when extremes of warming and high acidity co-occur with low net primary productivity, i.e., a decrease in food availability.

Extreme compound events in the equatorial and South Atlantic - Nature Communications The co-occurrence of marine heatwaves with extremes of high acidity and low chlorophyll concentrations has increased dramatically over the past two decades in the equatorial and South Atlantic. El Niñ...

🌊🌡️ In this study published @natcomms.nature.com, we analysed the simultaneous occurrence of marine heatwaves with extreme events of high acidity and net primary productivity in the equatorial and South Atlantic. Why is this important? A short 🧵...

www.nature.com/articles/s41...

New study by @rrrocean.bsky.social, @froeltho.bsky.social et al. shows that the co-occurrence of #MarineHeatwaves with extremes of high #acidity and low #chlorophyll concentrations increased dramatically over the past two decades in the equatorial and #SouthAtlantic.
www.nature.com/articles/s41...

I just returned from Hawaiʻi, energised by two fantastic events at the Univ. of Hawaiʻi at Mānoa

The symposium celebrating the scientific legacy of Klaus Wyrtki & the ENSO winter school

I made new acquaintances, met old friends & learned a lot!

Mahalo to Christina Karamperidou & Malte Stuecker

The increase in the severity of the marine heatwaves in the western tropical Atlantic is not accompanied by trends in the strength of the local drivers, suggesting that weaker forcing can lead to more devastating marine heatwaves as the global ocean temperature rises due to climate change.

The extreme warming during the summer/fall of 2020 led to the largest bleaching event recorded along the Brazilian coast, with 85% of stony corals and 70% of zoanthids areas bleached in Rio do Fogo.

Marine heatwaves are 5.1 times more frequent and 4.7 times more intense since the records started in 1982, with the 10 most extreme summers/falls in terms of marine heatwave cumulative intensity and spatial extension occurring in the last two decades.

We've just published a study @commsearth.bsky.social about the severe 2020 coral bleaching event in the tropical Atlantic caused by massive marine heatwaves 🌊🌡️🧵

Link: www.nature.com/articles/s43...

Exactly… Good times when we used to discuss where we would add another buoy…

The PIRATA committee is currently facing the challenging task of determining which buoys in the array to keep in the water. This decision will disrupt the long-term series established in 1997.

What a sad way to show that science has no borders.

For many years, I have been involved in the Prediction and Research Moored Array in the Tropical Atlantic (PIRATA) Programme, and I can attest to this. PIRATA is a successful collaboration among the US (NOAA), Brazil, and France. However, its data are assimilated and used by many across the globe.

I have been receiving the sad news about massive NOAA firing.

I cannot explain how important NOAA is for science globally. The data and model outputs generated by NOAA globally allow researchers from countries that don’t have the funding or capability to develop those to do their own science. 🌊🧵

These social reforms were considered too “communist” and deservedly a military coup backed by the USA to stamp them. The results were an ever-unequal and impoverished Brazil or Latin America… A situation that has finally got back to bite Americans' asses... pardon my language...