Not every month will set a new record, but the warming trend is obvious. This graphic shows #Arctic air temperature rank by month over the satellite era - now updated through October 2025... 🧪 + Ranks: 1=warmest (red), 46/47=coldest (blue) + Download higher resolution: zacklabe.com/arctic-tempe...

🌎 Share the facts on climate change with a new slide deck from Climate Central, available in English and Spanish. 🌎 www.climatecentral.org/climate-matt...

Reconstructing October #Arctic sea ice extent since 1850... Data from @nsidc.bsky.social at doi.org/10.7265/jj4s...

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Trends in November temperatures over land areas (where we live) for the last 50 years... 🔥 Data from NOAAGlobalTempv6.0.0. (www.ncei.noaa.gov/products/lan...)

October 2025 #Arctic sea ice extent was the 8th lowest on record for the month... This was 2,030,000 km² below the 1981-2010 average. October ice extent is decreasing at about 9.39% per decade. Data @nsidc.bsky.social: nsidc.org/data/seaice_...

Last month was the 3rd lowest #Antarctic sea ice extent on record for the month of October. This was 1,140,000 km² below the 1981-2010 October average. Data from the @nsidc.bsky.social: nsidc.org/data/seaice_...

"But perhaps the most consequential long-term loss for federal science is that of institutional knowledge and expertise — and the downstream effects on the training of early-career researchers." "We lost people with decades of experience and everyone who was very early career, ...”

Monday ice update - #Arctic sea ice extent is currently the 3rd lowest on record (JAXA data) • about 710,000 km² below the 2010s mean • about 1,580,000 km² below the 2000s mean • about 2,250,000 km² below the 1990s mean • about 2,490,000 km² below the 1980s mean More: zacklabe.com/arctic-sea-i...

Simulated reconstruction of November #Arctic sea ice thickness since 1901. Watch for the last 10 years or so... Information about this data set is available at psc.apl.uw.edu/research/pro.... Note that it is only updated through 2010 due to ERA-20C forcing.

Not what people ANYWHERE on the Pacific coast need. #akwx #AlaskaSky "The National Oceanic and Atmospheric Administration is halting a contract that makes it possible for the federal agency to…monitor for potential tsunamis…and quickly warn at-risk communities." alaskapublic.org/news/alaska-...

100 years of changing November sea ice... Total data set available from 1850 through 2017. Summary of methods: www.carbonbrief.org/guest-post-p.... More sea ice reconstructions at zacklabe.com/arctic-sea-i....

Saturday ice update - #Arctic sea ice extent is currently the 4th lowest on record (JAXA data) • about 520,000 km² below the 2010s mean • about 1,440,000 km² below the 2000s mean • about 2,170,000 km² below the 1990s mean • about 2,410,000 km² below the 1980s mean More zacklabe.com/arctic-sea-i...

Welcome to November! Here's a look at how temperatures have changed around our planet over the last four decades... Data from doi.org/10.24381/cds...

Now here is something scary... 👻 And some more spooky climate trends for today: www.climatecentral.org/climate-matt... #HappyHalloween! 🎃

Many important weather and climate data streams have gone silent as the U.S. government shutdown continues on. As just one example, NOAA’s Global Monitoring Laboratory did not release its regular monthly update for greenhouse gases, such as for carbon dioxide, methane, and nitrous oxide.

Global mean sea surface temperature anomalies (departure from average) so far this year ➡️ 2nd highest on record 🌊 Data from NOAA ERSSTv5 averaged over January to September.

Patterns of October temperatures in the #Antarctic when averaged by decade... Data from @copernicusecmwf.bsky.social ERA5 reanalysis.

Here's now a map view of the warming of the Caribbean during the months of September to November. While there are many environmental factors that impact hurricane intensity, this warming certainly plays a role in fueling that rapid intensification. More views at zacklabe.com/united-state... 🌊

October has been a very warmth month across both polar regions. Temperature anomaly map from www.karstenhaustein.com/climate

Climate Central has brought back the U.S. Billion Dollar Weather and Climate Disasters database, tracking the nation’s costliest storms, floods, and fires. In the first six months of 2025, there were 14 events totaling $101 billion in losses. Read more from Desk reporter Hêctor Alejandro Arzate.

To understand the climate connection to Hurricane Melissa, check out our real-time attribution page at @climatecentral.org: www.climatecentral.org/tropical-cyc... "Climate change made the ocean temperatures along Melissa's path 500 to 900 times more likely."

Here's a look at recent warming in the Caribbean during the September to November period since 1982. This is driven by human-caused climate change and fuels these powerful hurricanes. 🌊 More views at zacklabe.com/united-state...

The global mean temperature just set some new record daily highs for this time of year, despite the emerging La Niña conditions. Wow. Track it daily here: zacklabe.com/climate-chan...

Monday ice update - #Arctic sea ice extent is currently the 5th lowest on record (JAXA data) • about 390,000 km² below the 2010s mean • about 1,450,000 km² below the 2000s mean • about 2,230,000 km² below the 1990s mean • about 2,470,000 km² below the 1980s mean More: zacklabe.com/arctic-sea-i...

#Melissa was always likely to be an impactful hurricane for Jamaica, Cuba, and parts of the Bahamas. Climate change has amplified those impacts...and the potential damages. Read the full report, see the data, and explore the research ➡️ climatecentral.org/climate-shif...

September 2025 observed well above average temperatures stretching from Scandinavia to the Kara Sea (up to 5°C above the 1981-2010 climatological baseline). Low sea ice conditions and warmer than average ocean temperatures were also found in this region as well. Data from doi.org/10.24381/cds...

For understanding climate change impacts to tropical cyclones in near-real time, explore our new attribution pages unique to each storm from @climatecentral.org: www.climatecentral.org/tropical-cyc... "Climate change made the ocean temperatures along Melissa's path 500 to 700 times more likely."

Some perspective on this year's sea surface temperatures and recent warming across the North Pacific... 🌊 This graph shows the average for a band across the midlatitudes for every average January-September period from 1854-2025 using ERSSTv5 data.

Vertical cross-section of October temperature trends for all latitude bands. This graphic shows how temperatures are changing through the profile of the atmosphere. See climate change indicators of tropospheric warming (doi.org/10.1126/scie...) and stratospheric cooling (doi.org/10.1073/pnas...).

My next monthly blog is out, which looks at a new graphic of local Arctic amplification rates in fall compared to the annual mean. #DataViz #SciComm #OpenScience #OpenData #ClimateChange

Reversal of extreme precipitation trends over the Northeast US in response to aggressive climate mitigation in GFDL SPEAR https://doi.org/10.31223/X59443

Temperature anomalies averaged over the last month (left), 3 months (center), and 12 months (right) across the Northern Hemisphere... Data from @copernicusecmwf.bsky.social ERA5 reanalysis.

The extent of sea ice on our planet is still the 3rd lowest on record for this time of year. Unfortunately, as a result of the U.S. government shutdown, there is no data to assess last month's average global ice volume/thickness (provided by GIOMAS). More graphics at zacklabe.com/global-sea-i....

Friday ice update - #Arctic sea ice extent is currently the 6th lowest on record (JAXA data) • about 330,000 km² below the 2010s mean • about 1,490,000 km² below the 2000s mean • about 2,370,000 km² below the 1990s mean • about 2,580,000 km² below the 1980s mean More: zacklabe.com/arctic-sea-i...

Last month observed well above average temperatures around Hudson Bay (Canada). The last few seasons have observed a much longer ice-free season, so we'll have to keep an eye on this area as we approach this year's climatological freeze-up. Data from doi.org/10.24381/cds...

Changes in October temperatures across the #Arctic by decade... Parts of this area (e.g., the Kara Sea) are warming more than 5x faster than the globally-averaged temperature trend! #ArcticAmplication Data from @copernicusecmwf.bsky.social ERA5 reanalysis available at doi.org/10.24381/cds...

If you’re looking to do a PhD in the US, it’s a mess out there. Words by me ⬇️

Trends in October temperatures over land areas for the last 50 years... Data from www.ncei.noaa.gov/products/lan...

A look at the globally averaged sea surface temperature over the last three months relative to each other July-August-September period since 1854. This warming trend has far-reaching impacts. Data from NOAA ERSSTv5: www.ncei.noaa.gov/products/ext...

📣 The "U.S. Billion-Dollar Weather and Climate Disasters" data is back today through @climatecentral.org! And more soon! ➡️ Explore our new interactive website at www.climatecentral.org/climate-serv..., which is now updated through the first half of 2025 & totaling over $101 billion from 14 events.

To reiterate Dr. Rohde's point (And something that @edhawkins.org often discusses) data rescue is critically important to our understanding of climate change. It's honestly one of the easiest ways that individual scientists can make foundational contributions to building climate science knowledge.

Ice-free conditions continue in the Barents Sea region of the #Arctic Ocean. This is one area that has observed some of the largest losses of ice over the last few decades... compare the older years (dark/purple lines) to today! Map of this region: zacklabe.files.wordpress.com/2022/08/b203...

100 years of September sea surface temperature departures through this year. Check out how quickly some of the midlatitudes are warming! 🌊 Data from NOAA ERSSTv5 at doi.org/10.7289/V5T7...

❌ "Sea Ice Today services reduced" ❌ "Ice Sheets Today services reduced" "If you rely on these services, we would like to hear from you." via @nsidc.bsky.social (nsidc.org/sea-ice-toda... and nsidc.org/ice-sheets-t...)

Trends in October #Arctic sea ice thickness over approximately the last four decades... 🟦 - increasing ice thickness 🟥 - thinning ice Simulated data from PIOMAS. For more information: doi.org/10.1175/JCLI...

Temperature anomalies across the #Arctic over the last 12 months... Data from @copernicusecmwf.bsky.social ERA5 reanalysis.

Monday ice update - #Arctic sea ice extent is currently the 8th lowest on record (JAXA data) • about 510,000 km² below the 2010s mean • about 1,730,000 km² below the 2000s mean • about 2,690,000 km² below the 1990s mean • about 2,990,000 km² below the 1980s mean More: zacklabe.com/arctic-sea-i...

Temperature anomalies over the last month (left), 3 months (center), and 12 months (right) across the Southern Hemisphere. Red areas denote warmer than average temperatures and blue areas colder than average. Data from @copernicusecmwf.bsky.social ERA5 reanalysis.