Nostr notes by Zack Labe

And I am afraid it gets even more horrifying - Happy Halloween! ...

2026-10-31T18:07:44Z

And I am afraid it gets even more horrifying - Happy Halloween! 🎃👻

Now here is something scary... 👻 And some more spooky climate ...

2026-10-31T12:38:23Z

Now here is something scary... 👻

And some more spooky climate trends for today: https://www.climatecentral.org/climate-matters/october-nights-warming-us-cities

#HappyHalloween! 🎃

Clear losses of #Arctic sea ice concentration are found in ...

2026-10-30T13:40:25Z

Clear losses of #Arctic sea ice concentration are found in October. Some of the largest declining trends extend from parts of the East Siberian Sea to the Chukchi Sea, as well as the Kara Sea.

Sea ice concentration = fraction of ice-cover. More info on recent variability: https://doi.org/10.1175/BAMS-D-26-0123.1

I hope you all don't mind polar bear pictures from my trip ...

2026-10-30T11:24:02Z

I hope you all don't mind polar bear pictures from my trip that I'll be randomly sharing over the next few weeks 🤭

Here's one from yesterday in the Churchill Wildlife Management Area. Some of the surrounding ponds and wetlands are beginning to form ice, and we receiving a dusting of snow overnight.

My first hour on the tundra has some curious visitors… 🥶 ...

2026-10-29T02:11:08Z

My first hour on the tundra has some curious visitors… 🥶

I'm up here in Churchill with Polar Bears International ...

2026-10-29T02:01:28Z

I'm up here in Churchill with Polar Bears International (https://polarbearsinternational.org/) keeping a close eye on the start of the freeze-up this year. No ice yet, and climate change is pushing this later and later into the season. This means polar bears have to spend more time on land before they can return to the sea ice to hunt seals.

Temperature departures averaged over the last month (left), 3 ...

2026-10-26T22:40:34Z

Temperature departures averaged over the last month (left), 3 months (center), and 12 months (right) across the Northern Hemisphere...

Data from nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqvw4mnzsngjncd4xkjt8rprc6fxr8s8qkvry6ceedt35mcvr9krrskehp3f (nprofile…hp3f) ERA5 reanalysis.

Andddd global temperatures are soaring to new daily record highs ...

2026-10-26T00:24:38Z

Andddd global temperatures are soaring to new daily record highs again!

Graphic from https://zacklabe.com/climate-change-indicators/

I'm headed up to the tundra next week to observe the annual ...

2026-10-25T19:43:58Z

I'm headed up to the tundra next week to observe the annual polar bear migration along the Hudson Bay in Canada and do science communication and educational outreach on the effects of our rapidly warming Arctic.

We'll also be livestreaming from their tundra buggy! Follow along with our trip at: https://polarbearsinternational.org/news-media/events/the-importance-of-storytelling/

Last month observed the largest relative warming signal in the ...

2026-10-25T14:32:32Z

Last month observed the largest relative warming signal in the Arctic, which is not surprising for this time of year as the sea ice reforms. The tropical (El Niño) signal is really remarkable though.

[Plot shows zonal-mean temperature anomalies, where latitude = y-axis (not scaled by distance).]

Saturday El Niño update - Sea surface temperatures are still ...

2026-10-24T23:44:03Z

Saturday El Niño update - Sea surface temperatures are still warming across Niño region 3.4 over the last week. Note that I finally had to readjust the scale on the map view, so it's not quite comparable to prior updates.

Data from NOAA OISSTv2.1: https://www.ncei.noaa.gov/products/optimum-interpolation-sst

Temperature anomalies (departure from average) around our planet ...

2026-10-24T11:23:14Z

Temperature anomalies (departure from average) around our planet for the last month (left), 3 months (center), and 12 months (right)... Check out the development of the El Niño signature in the Pacific.

Data from https://doi.org/10.24381/cds.f17050d7

Trends in October #Arctic sea ice thickness over approximately ...

2026-10-24T00:32:03Z

Trends in October #Arctic sea ice thickness over approximately the last four decades (through 2025)...

🟦 - increasing ice thickness
🟥 - thinning ice

Simulated data from PIOMAS. For more information: https://doi.org/10.1175/JCLI-D-17-0436.1

El Niño is everywhere in the headlines, but ultimately ...

2026-10-23T11:22:21Z

El Niño is everywhere in the headlines, but ultimately human-caused climate change is the key reason for the record global warmth. 📈

Curious about how these two climate stories relate? Learn more in our latest report: https://www.climatecentral.org/climate-matters/el-nino-global-temperatures-explained

Last month was the 2nd hottest September on record for our ...

2026-10-23T00:29:55Z

Last month was the 2nd hottest September on record for our planet. The last couple of years have been exceptionally warm considering the historical record. 📈

This data is using NOAAGlobalTempv6.1.0: https://www.ncei.noaa.gov/products/land-based-station/noaa-global-temp

Patterns of October temperatures in the #Antarctic when averaged ...

2026-10-22T20:46:46Z

Patterns of October temperatures in the #Antarctic when averaged by decade...

Data from nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqvw4mnzsngjncd4xkjt8rprc6fxr8s8qkvry6ceedt35mcvr9krrskehp3f (nprofile…hp3f) ERA5 reanalysis.

Much of the perimeter of the #Arctic Ocean is getting wetter ...

2026-10-22T12:21:58Z

Much of the perimeter of the #Arctic Ocean is getting wetter during the month of October. This is largest over the Barents-Kara Seas region, along with the eastern coast of Greenland.

+ Data: https://psl.noaa.gov/data/gridded/data.gpcp.html
+ More info: https://doi.org/10.25923/11nn-hn03

We're excited to share our new climate change indicators ...

2026-10-22T00:00:36Z

We're excited to share our new climate change indicators tool, featuring interactive, regularly updated data visualizations and access to the underlying data!

We're hoping to expand this feature over time, so let us know what other indicators you'd like to see!

➡️ Global Indicators (English and Spanish): https://www.climatecentral.org/tools/climate-indicators
▶️ Local climate: https://www.climatecentral.org/climate-local

Watch the changes in 100 years of average January-September ...

2026-10-21T12:07:01Z

Watch the changes in 100 years of average January-September temperature anomalies over land areas through 2026...

Data from NOAAGlobalTemp v6.1.0: https://www.ncei.noaa.gov/products/land-based-station/noaa-global-temp

#Arctic climate rankings are now in for September 2026: ...

2026-10-20T23:40:05Z

#Arctic climate rankings are now in for September 2026: https://zacklabe.com/archive-2026/. It was unusually warm again.

No updates on PIOMAS sea-ice volume and thickness. #SciComm #DataViz #OpenScience #OpenData

Simulated reconstruction of October #Arctic sea ice thickness ...

2026-10-20T11:32:51Z

Simulated reconstruction of October #Arctic sea ice thickness since 1901. Large interannual variability and widespread thinning in recent years.

Information about this data set is available at https://doi.org/10.1175/JCLI-D-19-0008.1

And here is the corresponding global upper ocean heat content (0 ...

2026-10-19T23:03:20Z

And here is the corresponding global upper ocean heat content (0 to 700 m depth) also now updated through June 2026...

This graph showing anomalies is created by NOAA at https://www.ncei.noaa.gov/access/global-ocean-heat-content/

#Arctic air temperature rank by month over the satellite era - ...

2026-10-19T12:17:51Z

#Arctic air temperature rank by month over the satellite era - now updated through September 2026...

+ Ranks: 1=warmest (red), 47/48=coldest (blue)
+ Download higher resolution: https://zacklabe.com/arctic-temperatures/
+ Data from nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqvw4mnzsngjncd4xkjt8rprc6fxr8s8qkvry6ceedt35mcvr9krrskehp3f (nprofile…hp3f): https://doi.org/10.24381/cds.f17050d7

"The last three months were about three degrees above ...

2026-10-19T00:27:42Z

"The last three months were about three degrees above average, hotter than the Dust Bowl summer of 1936 and the heat dome of 2021, and tens of millions of people can’t afford to pay for the air-conditioning that helped keep them safe in the deadly heat." via https://www.nytimes.com/2026/10/18/us/oklahoma-extreme-heat-electricity-crisis.html?unlocked_article_code=1.JlE.ZbDI.sNsHY3XUGHJV&smid=nytcore-ios-share

Check this out! These maps show temperature anomalies averaged by ...

2026-10-18T13:30:07Z

Check this out! These maps show temperature anomalies averaged by decade in the #Arctic for the month of October. This month is one of the fast warming for Arctic amplification trends. Heat is being transferred back into the overlying atmosphere from newly open water.

Data: https://doi.org/10.24381/cds.f17050d7.

Check out this animation of 100 years of average September ...

2026-10-17T17:26:55Z

Check out this animation of 100 years of average September temperature anomalies over global land areas through 2026...

Data from NOAAGlobalTemp v6.1.0: https://www.ncei.noaa.gov/products/land-based-station/noaa-global-temp

"September 2026 was the warmest September on record for the ...

2026-10-17T13:55:10Z

"September 2026 was the warmest September on record for the contiguous U.S. Records have been maintained since 1895." Note that this was especially driven by unusually warm nights.

➡️ Our latest monthly climate report (Global and U.S. data+graphics): https://climatecentral.org/climate-briefings/september-2026

Maps of temperature departures averaged over the last month ...

2026-10-16T21:08:40Z

Maps of temperature departures averaged over the last month (left), 3 months (center), and 12 months (right) across the #Arctic...

Data from https://doi.org/10.24381/cds.f17050d7

The average global temperature so far this year (for the ...

2026-10-11T13:38:02Z

The average global temperature so far this year (for the January-September period) is the 2nd warmest on record since the start of this dataset...

This data is using NOAAGlobalTempv6.1.0: https://www.ncei.noaa.gov/products/land-based-station/noaa-global-temp

100 years of September sea surface temperature anomalies... watch ...

2026-10-06T12:15:14Z

100 years of September sea surface temperature anomalies... watch until the end (record high) 🫣

Data from ERSSTv6: https://www.ncei.noaa.gov/products/extended-reconstructed-sst

We have some new interactive climate data visualizations at ...

2026-10-05T18:36:58Z

We have some new interactive climate data visualizations at https://observablehq.com/@climatecentral/-/collection/climate-services. Hope they are useful, and feel free to share!

Meanwhile, sea surface temperatures across the wider tropical ...

2026-06-14T01:30:11Z

In reply to nevent1q…wu8v
_________________________

Meanwhile, sea surface temperatures across the wider tropical Pacific have set new daily record high levels since April, including a new *all-time* record for this region. 🔥

Graphic from https://climate.copernicus.eu/surface-air-temperature-may-2026