Gunnar Myhre

Jordkloden skinner svakere enn før Nye satellittmålinger viser at jorda reflekterer mindre sollys. Hva skjer?

Klimaendringer og rensing av luftforurensning gjør jordkloden mørkere

Hurricane Melissa is being fuelled by exceptional ocean heat The monster hurricane pummelling Jamaica is powered by abnormal sea surface temperatures in the Caribbean, which were made at least 500 times more likely by global warming

It's horrifying to see #Melissa intensifying right up to landfall - I dread to think what will happen in Jamaica, with up to a metre of rain forecast 🧪

But it's clear why Melissa is so powerful - it was fuelled by waters made abnormally warm by global heating:

www.newscientist.com/article/2501...

Uncertain climate effects of anthropogenic reactive nitrogen - Nature Nature - Uncertain climate effects of anthropogenic reactive nitrogen

Uncertain climate effects of anthropogenic reactive nitrogen www.nature.com/articles/s41...

The Blue Marble Is Losing Its Glow The planet’s brightness is dimming—changing rainfall, circulation and temperature

The planet’s brightness is dimming—changing rainfall, circulation and temperature

Emerging hemispheric asymmetry of Earth’s radiation | PNAS Twenty-four years of satellite observations from the Clouds and the Earth’s Radiant Energy System show a northern hemisphere (NH) minus southern he...

Also see this new study:

'Emerging hemispheric asymmetry of Earth’s radiation'

Norman Loeb, Tyler Thorsen , Seiji Kato, @fredrosemn.bsky.social, Øivind Hodnebrog, and @gunnarmy.bsky.social

www.pnas.org/doi/10.1073/...

Emerging hemispheric asymmetry of Earth’s radiation | PNAS Twenty-four years of satellite observations from the Clouds and the Earth’s Radiant Energy System show a northern hemisphere (NH) minus southern he...

Emerging hemispheric asymmetry of Earth’s radiation | PNAS www.pnas.org/doi/10.1073/...

The warming effect of black carbon must be reassessed in light of observational constraints Warming from BC stays uncertain despite observational constraints.

➡️ Article: The warming effect of black carbon must be reassessed in light of observational constraints
@gunnarmy.bsky.social et al.

www.cell.com/cell-reports...

Earth is more sensitive to greenhouse gases than we thought Our climate seems to be more sensitive to greenhouse gas emissions than some researchers had hoped, meaning the world will have to up its decarbonisation efforts

Our climate seems to be more sensitive to greenhouse gases than we thought, which means we have to up our decarbonisation efforts.

Earth is more sensitive to greenhouse gases than we thought Our climate seems to be more sensitive to greenhouse gas emissions than some researchers had hoped, meaning the world will have to up its decarbonisation efforts

Our climate seems to be more sensitive to greenhouse gases than we thought, which means we have to up our decarbonisation efforts.

YouTube video by Liverpool FC Our lad from Portugal. Forever | Diogo Jota

“… oh, his name is Diogo..” 💔

youtu.be/XQ5TA0F-dZc?...

Earth is more sensitive to greenhouse gases than we thought Our climate seems to be more sensitive to greenhouse gas emissions than some researchers had hoped, meaning the world will have to up its decarbonisation efforts

Our climate seems to be more sensitive to greenhouse gases than we thought, which means we have to up our decarbonisation efforts.

Earth is more sensitive to greenhouse gases than we thought Our climate seems to be more sensitive to greenhouse gas emissions than some researchers had hoped, meaning the world will have to up its decarbonisation efforts

Our climate seems to be more sensitive to greenhouse gases than we thought, which means we have to up our decarbonisation efforts.

Earth is more sensitive to greenhouse gases than we thought Our climate seems to be more sensitive to greenhouse gas emissions than some researchers had hoped, meaning the world will have to up its decarbonisation efforts

NewScientist story www.newscientist.com/article/2485...
on our paper: www.science.org/doi/10.1126/...

Observed trend in Earth energy imbalance may provide a constraint for low climate sensitivity models Climate models that give a low warming from increases in greenhouse gases do not match satellite measurements. Future warming will likely be worse than thought

A pdf of the paper is now available here: cicero.oslo.no/en/articles/...

Summary and some background on our recent Science paper: cicero.oslo.no/en/articles/...

The inability to produce a strong positive shortwave and strong negative longwave Earth energy imbalance trend is found to be a robust feature in the low climate sensitivity models, especially for models with a climate sensitivity below 2.5 kelvin.

Observed trend in Earth energy imbalance may provide a constraint for low climate sensitivity models Climate forcings by greenhouse gases and aerosols cause an imbalance at the top of the atmosphere between the net incoming solar radiation and outgoing longwave radiation from Earth. This Earth energy...

Happy to share our paper in ‪@science.org‬ 'Observed trend in Earth energy imbalance may provide a constraint for low climate sensitivity models' | Science www.science.org/doi/10.1126/...

"Emissions have basically stabilized and accordingly the annual increase in atmospheric CO2 has stabilized (it spiked in 2016 and 2024 due to El Nino events but if you neglect those individual spikes the data show a clear leveling)," Mann.

That, seriously, is about as wrong as it is possible to be:

Behind the paper: modelling extreme precipitation in Europe - Latitude We talk to Birthe Steensen and colleagues, authors of the recent PLOS Climate publication “How climate models reproduce the observed increase in extreme precipitation over…

New on the Latitude blog: we talk to the authors of a recent PLOS Climate study on the modelling of extreme precipitation in Europe

latitude.plos.org/2025/06/behi...

@gunnarmy.bsky.social @cicero.oslo.no

Research position in atmospheric science (280956) | CICERO Center for International Climate Research Job title: Research position in atmospheric science (280956), Employer: CICERO Center for International Climate Research, Deadline: Tuesday, June 10, 2025

Open position at CICERO: We are particularly seeking an expert in aerosol–cloud interactions to join our team www.jobbnorge.no/en/available...

Hydrogen GWP100 sensitivity study published. Does size, location or chemical background matter? Not much, but you can read the paper here: acp.copernicus.org/articles/25/...

The climate impact of a #hydrogen economy: We welcome contributions to our session at the #EGU25 in Vienna & online. We aim for a better understanding of a hydrogen budget and impacts of hydrogen use.
Deadline for abstracts: 15 January 2025 meetingorganizer.copernicus.org/EGU25/sessio...

Repost this if you’re old enough to remember when they tried to convince us that “global warming stopped in 2008” (or whenever).