Natassa Romanou
@aromanou.bsky.social
Oceans. Climate. Society. And everything in between. Climate scientist and numerical modeler, aka Anastasia Romanou. NASA-GISS/Columbia U. Views my own.
Reposted by Natassa Romanou
COP30 just wrapped and the Paris Agreement turns 10 this year. Here's where we are on climate: 🧪 www.scientificamerican.com/article/the-...
5 Charts Show Climate Progress as Paris Agreement Turns 10
The 2015 Paris Agreement forged a path for the world to stave off the worst climate change scenarios. Here’s where we stand 10 years later
www.scientificamerican.com
November 22, 2025 at 2:02 PM
COP30 just wrapped and the Paris Agreement turns 10 this year. Here's where we are on climate: 🧪 www.scientificamerican.com/article/the-...
Reposted by Natassa Romanou
Re-routing of ships around the Cape of Good Hope led to a natural experiment.
By "comparing NO₂ [unaffected by the sulfur-reducing regulations], with cloud droplet number, which is sensitive to sulfur, [they] found a 67% reduction in ships' cloud-altering abilities" after the new IMO regulations.
By "comparing NO₂ [unaffected by the sulfur-reducing regulations], with cloud droplet number, which is sensitive to sulfur, [they] found a 67% reduction in ships' cloud-altering abilities" after the new IMO regulations.
When trade routes shift, so do clouds: Researchers uncover ripple effects of new global shipping regulations
When militia attacks disrupted shipping lanes in the Red Sea, few imagined the ripple effects would reach the clouds over the South Atlantic. But for Florida State University atmospheric scientist Mic...
phys.org
November 22, 2025 at 12:08 PM
Re-routing of ships around the Cape of Good Hope led to a natural experiment.
By "comparing NO₂ [unaffected by the sulfur-reducing regulations], with cloud droplet number, which is sensitive to sulfur, [they] found a 67% reduction in ships' cloud-altering abilities" after the new IMO regulations.
By "comparing NO₂ [unaffected by the sulfur-reducing regulations], with cloud droplet number, which is sensitive to sulfur, [they] found a 67% reduction in ships' cloud-altering abilities" after the new IMO regulations.
Come on New York, you can do it too. #Mamdani
“Helsinki hasn’t registered a single traffic-related fatality in the past year…Citing data that shows the risk of pedestrian fatality is cut in half by reducing a car’s speed from 40 to 30km/hr, city officials imposed the lower limit in most of Helsinki’s residential areas & city center in 2021.”
Helsinki just went a full year without a single traffic death
The capital city is Finnish’ed with car-related fatalities.
www.politico.eu
November 21, 2025 at 5:42 AM
Come on New York, you can do it too. #Mamdani
Nocturnal campus life.
November 21, 2025 at 5:40 AM
Nocturnal campus life.
Reposted by Natassa Romanou
If we don't rapidly phase out fossil fuels, we can say goodbye to coral reefs, the Greenland and Antarctic icesheets, and permafrost. The results will not be pretty.
3 massive changes you'll see as the climate careens toward tipping points
Scientists are increasingly concerned that the planet is headed for massive, irreversible changes due to global warming. In some cases, those changes have already begun.
www.npr.org
November 19, 2025 at 3:42 PM
If we don't rapidly phase out fossil fuels, we can say goodbye to coral reefs, the Greenland and Antarctic icesheets, and permafrost. The results will not be pretty.
Today I will be speaking at COP30 on the High Impact events and Tipping Points assessment report. It will be livestreamed here, starting at 10am Belém time: www.youtube.com/@iccinet
International Cryosphere Climate Initiative
International Cryosphere Climate Initiative (ICCI) is a network of senior policy experts and researchers aiming to spread cryosphere science and preserve the cryosphere's key role in Earth's climate s...
www.youtube.com
November 19, 2025 at 5:04 AM
Today I will be speaking at COP30 on the High Impact events and Tipping Points assessment report. It will be livestreamed here, starting at 10am Belém time: www.youtube.com/@iccinet
Σαν σήμερα. Η εξέγερση των φοιτητών του Πολυτεχνείου. Events that shaped generations. And very pertinent today.
November 17, 2025 at 5:09 PM
Σαν σήμερα. Η εξέγερση των φοιτητών του Πολυτεχνείου. Events that shaped generations. And very pertinent today.
Reposted by Natassa Romanou
65 Years Ago,,, History was made. #RubyBridges
November 15, 2025 at 4:41 AM
65 Years Ago,,, History was made. #RubyBridges
Reposted by Natassa Romanou
It's official: Katie Wilson is the next mayor of Seattle!
Katie Wilson Is Seattle’s Next Mayor
Somewhere, Bruce Harrell is slamming a table. Katie Wilson is up by 1,976 votes and 0.72 percent of the vote. It’s tight, but we’re outside of recount territory, and it’s mathematica...
www.thestranger.com
November 13, 2025 at 12:38 AM
It's official: Katie Wilson is the next mayor of Seattle!
Reposted by Natassa Romanou
Reposted by Natassa Romanou
Never forget: At breakneck speed we are leaving the stable Holocene climate in which human society developed and thrived. Weather extremes are outside historical experience. Sea-level rise is accelerating. Dangerous tipping points are ahead.
Graph: ed-hawkins.github.io/climate-visu...
Graph: ed-hawkins.github.io/climate-visu...
November 13, 2025 at 11:52 AM
Never forget: At breakneck speed we are leaving the stable Holocene climate in which human society developed and thrived. Weather extremes are outside historical experience. Sea-level rise is accelerating. Dangerous tipping points are ahead.
Graph: ed-hawkins.github.io/climate-visu...
Graph: ed-hawkins.github.io/climate-visu...
Reposted by Natassa Romanou
Impossible to ignore what’s happening to #Arctic temperatures in the month of November...
Data from @copernicusecmwf.bsky.social ERA5 reanalysis.
Data from @copernicusecmwf.bsky.social ERA5 reanalysis.
November 11, 2025 at 12:10 AM
Impossible to ignore what’s happening to #Arctic temperatures in the month of November...
Data from @copernicusecmwf.bsky.social ERA5 reanalysis.
Data from @copernicusecmwf.bsky.social ERA5 reanalysis.
Reposted by Natassa Romanou
The amazing research article "The 2025 state of the climate report: a planet on the brink" isn't getting enough notice, so I made a little video with the summary of key findings from the paper.
If it's too fast at times, just pause and read.
academic.oup.com/bioscience/a...
If it's too fast at times, just pause and read.
academic.oup.com/bioscience/a...
October 30, 2025 at 7:59 PM
The amazing research article "The 2025 state of the climate report: a planet on the brink" isn't getting enough notice, so I made a little video with the summary of key findings from the paper.
If it's too fast at times, just pause and read.
academic.oup.com/bioscience/a...
If it's too fast at times, just pause and read.
academic.oup.com/bioscience/a...
Reposted by Natassa Romanou
New study by Falkena et al. shows that most climate models
don’t capture the established key mechanism that can destabilize the North Atlantic subpolar gyre. Those models that get it predict abrupt subpolar gyre changes in coming decades 😳.
@swinda.bsky.social
esd.copernicus.org/articles/16/...
don’t capture the established key mechanism that can destabilize the North Atlantic subpolar gyre. Those models that get it predict abrupt subpolar gyre changes in coming decades 😳.
@swinda.bsky.social
esd.copernicus.org/articles/16/...
October 23, 2025 at 10:28 AM
New study by Falkena et al. shows that most climate models
don’t capture the established key mechanism that can destabilize the North Atlantic subpolar gyre. Those models that get it predict abrupt subpolar gyre changes in coming decades 😳.
@swinda.bsky.social
esd.copernicus.org/articles/16/...
don’t capture the established key mechanism that can destabilize the North Atlantic subpolar gyre. Those models that get it predict abrupt subpolar gyre changes in coming decades 😳.
@swinda.bsky.social
esd.copernicus.org/articles/16/...
Reposted by Natassa Romanou
💌 The 8th Letter from the COP30 Presidency makes an urgent call: it is time to accelerate climate adaptation. To adapt is to evolve: to protect lives, drive development, and reduce inequalities. Belém can be the turning point! Read the full letter at cop30.br
October 23, 2025 at 2:14 PM
💌 The 8th Letter from the COP30 Presidency makes an urgent call: it is time to accelerate climate adaptation. To adapt is to evolve: to protect lives, drive development, and reduce inequalities. Belém can be the turning point! Read the full letter at cop30.br
Reposted by Natassa Romanou
Just attended Nordic Tipping Week to discuss the latest science on the AMOC tipping point and its societal impacts. Now I’m feeling some serious post-conference anguish. Being back in a world pretending everything’s normal is exhausting. The cognitive dissonance is heavy.
October 24, 2025 at 5:32 AM
Just attended Nordic Tipping Week to discuss the latest science on the AMOC tipping point and its societal impacts. Now I’m feeling some serious post-conference anguish. Being back in a world pretending everything’s normal is exhausting. The cognitive dissonance is heavy.
Reposted by Natassa Romanou
Just published, a land-mark paper by Annemarie Eckes-Shephard et al.! It assesses the performance of a new generation of Demography-enabled Dynamic Global Vegetation (D-DGVMs), that attempt to simulate the changing size and age structure of trees in forests.
nph.onlinelibrary.wiley.com
October 24, 2025 at 3:12 AM
Just published, a land-mark paper by Annemarie Eckes-Shephard et al.! It assesses the performance of a new generation of Demography-enabled Dynamic Global Vegetation (D-DGVMs), that attempt to simulate the changing size and age structure of trees in forests.
Reposted by Natassa Romanou
There's a good essay in @science.org about the importance of free global access to climate and weather data. The atmosphere doesn't know about borders, so paywalls anywhere hurt predictions everywhere; even more so for those who can't pay
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Free global access to climate and weather data must continue
Last month at the 80th session of the United Nations, the call to be “better together” was especially appropriate for discussions on the Early Warnings for All global initiative. About half the world’...
www.science.org
October 13, 2025 at 7:14 PM
There's a good essay in @science.org about the importance of free global access to climate and weather data. The atmosphere doesn't know about borders, so paywalls anywhere hurt predictions everywhere; even more so for those who can't pay
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Reposted by Natassa Romanou
We honor the life and legacy of Dr. Jane Goodall, the pioneering conservationist, champion for wildlife, and unwavering voice for the planet.
This photo from our 2021 Annual Meeting honored her extraordinary impact. Her legacy will continue to inspire.
This photo from our 2021 Annual Meeting honored her extraordinary impact. Her legacy will continue to inspire.
October 1, 2025 at 9:42 PM
We honor the life and legacy of Dr. Jane Goodall, the pioneering conservationist, champion for wildlife, and unwavering voice for the planet.
This photo from our 2021 Annual Meeting honored her extraordinary impact. Her legacy will continue to inspire.
This photo from our 2021 Annual Meeting honored her extraordinary impact. Her legacy will continue to inspire.
Reposted by Natassa Romanou
“To be a good scientist, I have to take emotions out of work. Still, I would say looking at this data, when I allow myself to connect to it emotionally, then I am afraid. This really scares me”
- Dr. Levke Caesar, co-lead of Planetary Boundaries Science Lab
- Dr. Levke Caesar, co-lead of Planetary Boundaries Science Lab
World’s oceans fail key health check as acidity crosses critical threshold for marine life
Scientists call for renewed global effort to curb fossil fuels as seven of nine planetary boundaries now transgressed
www.theguardian.com
September 25, 2025 at 4:26 AM
“To be a good scientist, I have to take emotions out of work. Still, I would say looking at this data, when I allow myself to connect to it emotionally, then I am afraid. This really scares me”
- Dr. Levke Caesar, co-lead of Planetary Boundaries Science Lab
- Dr. Levke Caesar, co-lead of Planetary Boundaries Science Lab
Reposted by Natassa Romanou
Apply now to be an IPCC (Intergovernmental Panel on Climate Change) AR7 (Seventh Assessment Report) Chapter Scientist and contribute directly to the global climate change assessment
🗓 Deadline: 18 October 2025
🔗 Apply here: www.ictp.it/opportunity/...
#IPCC #ClimateScience #EarlyCareerResearchers
🗓 Deadline: 18 October 2025
🔗 Apply here: www.ictp.it/opportunity/...
#IPCC #ClimateScience #EarlyCareerResearchers
September 25, 2025 at 11:17 AM
Apply now to be an IPCC (Intergovernmental Panel on Climate Change) AR7 (Seventh Assessment Report) Chapter Scientist and contribute directly to the global climate change assessment
🗓 Deadline: 18 October 2025
🔗 Apply here: www.ictp.it/opportunity/...
#IPCC #ClimateScience #EarlyCareerResearchers
🗓 Deadline: 18 October 2025
🔗 Apply here: www.ictp.it/opportunity/...
#IPCC #ClimateScience #EarlyCareerResearchers
Reposted by Natassa Romanou
Seven of nine planetary boundaries now breached – ocean acidification joins the danger zone," says PIK director Johan Rockström presenting the key findings of the Planetary Health Check 2025 today. #PlanetaryBoundaries
➡️ www.pik-potsdam.de/en/news/late...
➡️ www.pik-potsdam.de/en/news/late...
September 24, 2025 at 4:22 PM
Seven of nine planetary boundaries now breached – ocean acidification joins the danger zone," says PIK director Johan Rockström presenting the key findings of the Planetary Health Check 2025 today. #PlanetaryBoundaries
➡️ www.pik-potsdam.de/en/news/late...
➡️ www.pik-potsdam.de/en/news/late...
Reposted by Natassa Romanou
History made for the ocean: #BBNJ Agreement enters into force, protecting high seas & deep seabed, safeguarding life under water.
“Our ocean is the foundation of our very existence. Today we took an important step forward to save our ocean, & to save our future” - ED @ingerandersen.bsky.social
“Our ocean is the foundation of our very existence. Today we took an important step forward to save our ocean, & to save our future” - ED @ingerandersen.bsky.social
September 20, 2025 at 6:01 AM
History made for the ocean: #BBNJ Agreement enters into force, protecting high seas & deep seabed, safeguarding life under water.
“Our ocean is the foundation of our very existence. Today we took an important step forward to save our ocean, & to save our future” - ED @ingerandersen.bsky.social
“Our ocean is the foundation of our very existence. Today we took an important step forward to save our ocean, & to save our future” - ED @ingerandersen.bsky.social