BREAKING NEWS
HISTORIC
HARSHEST HEAT WAVE IN SOUTHERN HEMISPHERE HISTORY worsens:
Temperatures close to 50C in 3 Australian States
Victoria had its hottest day ever with 48.9C
Dozens of records shattered.
And it will get worse
Updates later
@lufprado
Climate Scientist | Paleoclimate | Climate Variability and Change | Professor of Climate Sciences at Rio de Janeiro State University, Brazil | IPCC AR7 Lead Author | Born @ 342 ppm. Personal profile. Books & Climate.
BREAKING NEWS
HISTORIC
HARSHEST HEAT WAVE IN SOUTHERN HEMISPHERE HISTORY worsens:
Temperatures close to 50C in 3 Australian States
Victoria had its hottest day ever with 48.9C
Dozens of records shattered.
And it will get worse
Updates later
Map centered on North America showing 2-meter temperature, jet stream, and stratospheric polar vortex for 12 UTC, 26 Jan 2026.
2-meter temperatures, jet stream (light blue), and stretched stratospheric polar vortex (dark blue), for 12 UTC, 26 Jan 2026.
Ancient pine trees growing in eastern Spain have quietly recorded more than five centuries of Mediterranean weather. Analysis of tree rings clearly shows that todays storms and droughts are becoming more intense and more frequent than almost anything the region has experienced since the early 1500s.
In 2025, 50% of the globe experienced more days than average of at least strong heat stress โ with โfeels-likeโ temperatures of 32ยฐC or higher. ๐ฅ At the same time, most regions saw fewer cold stress days than average.
Learn more in the #GCH2025: climate.copernicus.eu/global-clima...
@ecmwf.int
โฌ๏ธ
New study uses a global observational constraint based on a #volcanic eruption and shows that #ClimateModels strongly underestimate how #cloud cover responds to #aerosols, leading to major uncertainties in climate projections. www.nature.com/articles/s41...
Regional map of average energy imbalance during 2020-2024 relative to 2001-2019.
All changes in Earth's temperature are connected to changes in Earth's energy imbalance, i.e the difference between energy absorbed from the sun and energy radiated into space.
Recently, net increases have been largest in the Southern Ocean, Atlantic, North Pacfiic, and Europe.
โ๏ธ Article: Global water security threatened by rising inequality
www.nature.com/articles/s41...
CIรNCIA CONTRA OBSCURANTISMO
Marcus Lacerda, o infectologista brasileiro que foi perseguido por liderar o estudo que comprovou a ineficรกcia da cloroquina no tratamento da Covid-19, foi nomeado diretor do TDR, uma das plataformas mais estratรฉgicas da Organizaรงรฃo Mundial da Saรบde (OMS).
Which option do we choose - act or delay?
These are the 'warning' stripes highlighting global choices. Do we act rapidly and keep global temperatures below 2ยฐC, or delay and end up in a 3ยฐC world (or worse)?
Ocean Heat Content Sets Another Record in 2025
'Global ocean warming continued unabated in 2025 in response to increased greenhouse gas concentrations and recent reductions in sulfate aerosols'
I'm hoping this preliminary @mercatorocean.bsky.social estimate for 2025 is wrong...๐ซฃ
NEW โ Analysis: The climate papers most featured in the media in 2025 | @rtmcswee.carbonbrief.org @ayeshatandon.carbonbrief.org
Read here: buff.ly/sF3cD1c
Bar graph showing US temperatures by year. Blue bars going down are temperatures below 20th century average and are present in beginning of graph 1895-1970s. Orange bars most recently indicate above-average temperatures. Temperatures are rising because of climate change.
๐ It's official from NOAA. 2025 was the fourth-hottest year on record (since 1895) for the contiguous U.S. ๐ฅ
Average temperatures for the contiguous U.S. in 2025 were 2.6ยฐF (1.4ยฐC) warmer than the 20th century (1901-2000) average.
๐งต Let's dig in a little deeper.
La production d'รฉlectricitรฉ ร partir du charbon a diminuรฉ ร la fois en Chine et en Inde en 2025, la premiรจre baisse simultanรฉe en un demi-siรจcle, aprรจs que chaque pays a ajoutรฉ des quantitรฉs record d'รฉnergie propre www.carbonbrief.org/analysis-coa...
Five early career scientists in krill pun t-shirt: jagged little krill, krill bill, killer queen, license to kril. In front of the R/V Sikuliaq, university of Alaskas research vessel. About to depart to Antarctica to study sea ice and plankton!
This all women, all early career team is officially on its way to the Wedell Sea, Antarctica to study sea ice and plankton!! Wish us luck in the dreadful Drake Passage ๐ค๐๐ง๐ฆ๐ถ #oceanography #iceXplankton Krill pun shirts were gifts from co-I Tricia Thibodeau ๐
The White House pictured on a sunny with minimal clouds and a text overlay that reads: โTrump is expected to withdraw the U.S. from several major international climate agreements.โ
President Trump announced plans to withdraw the U.S. from the U.N.โs main climate framework and other major climate agreements, though timing remains unclear. www.nytimes.com/live/2026/01... , climatecommunication.yale.edu/publications...
#IPCC Chair Jim Skea met today with Norway's Climate & Environment Minister Andreas Bjelland Eriksen. They highlighted IPCC's crucial role in driving global #climateaction and how trusted, policy-relevant science is key to ambitious & inclusive responses to climate change.
Line graph time series of CO2 equivalent mixing ratio (in ppm) from 1700 through 2024 for AGGI, CO2 alone, and CO2 plus non-CO2 GHGs. There is a long-term increasing trend in recent years only.
Looks like this data was quietly updated in the fall for the latest numbers through 2024 - Annual Greenhouse Gas Index (AGGI) produced by NOAA...
It is now up to a 54% increase in the influence of greenhouse gases in the atmosphere since 1990 (AGGI = 1.54; heat trapping)
New study by @doniff.bsky.social et al. shows that long-term #ClimateChange systematically alters small-scale #wind variability and its vertical velocity, influencing #cloud microphysics and the Earthโs radiative balance. www.nature.com/articles/s41...
Q&A: What does Chinaโs new Paris Agreement pledge mean for climate action? | @anikanpatel.carbonbrief.org @drsimevans.carbonbrief.org
Read here: buff.ly/ge8mlcu
Happy 2026!
Plastics have infiltrated every recess of the planet, including your lungs, kidneys and other sensitive organs
go.nature.com/4j1dLeY
Green line graph time series of average sea surface temperature anomalies for each January-November from 1850 through 2025 for only the midlatitude region of the North Pacific Ocean. There is large interannual variability, but an overall long-term increasing trend. Anomalies are computed relative to a 1981-2010 baseline. 2025 is a record high.
Check out this year's extreme sea surface temperatures and recent warming across the North Pacific... ๐
This graph shows the average for a band across the midlatitudes for every average January-November period from 1854-2025 using ERSSTv5 data.
A paper published in Nature in September suggests a quarter of heatwave events from 2000-23 would have been near impossible without anthropogenic climate change. The paper also indicates that major carbon emitters are responsible for around 50% of the increase in intensity of these events. โ๏ธ ๐งช