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)

🌊 www.nature.com/articles/s41...

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

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.

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.

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.

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...