Zack Labe @ZLabe Twitter profile

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Zack Labe

2 years

Looking for polar climate visualizations? Start here: 📈📉 + Arctic sea-ice extent: + Arctic sea-ice thickness/volume: + Arctic temperatures: + Antarctic sea ice:

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Zack Labe

@ZLabe

11 months

"Sea Level Through a Porthole" - new animation by @NASAViz at Learn more from @NASAClimate at #ClimateChange

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Zack Labe

@ZLabe

1 year

Please watch - this is our planet heating up... 🌡️ [Visualization: @NASAViz (). Data: @NASAGISS (). Info: @NASAClimate ().]

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Zack Labe

@ZLabe

11 months

Uh. Graphic from .

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Zack Labe

@ZLabe

1 year

As always, my last tweet of the year - rising carbon dioxide (CO₂)... There is no deadline. Any reduction in emissions will reduce future climate warming. I am hopeful! Thank you all for following! 🙂 + Visualization/info by @gcarbonproject :

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Zack Labe

@ZLabe

5 years

Wow, another new record! Last month was the warmest September on record globally 📈 [Summary of data: ]

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Zack Labe

@ZLabe

6 years

The extreme event continues to unfold in the high #Arctic today in response to a surge of moisture and "warmth" 2018 is well exceeding previous years (thin lines) for the month of February. 2018 is the red line. Average temperature is in white ()

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Zack Labe

@ZLabe

8 years

A look at the loss of thicker (usually older) #Arctic sea ice in Octobers from 1979-2016 (PIOMAS, ice < 1.5 meters masked black)

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Zack Labe

@ZLabe

1 year

I keep thinking we've reached the largest anomaly (in terms of absolute magnitude), but that's not the case yet. The #Antarctic departure continues to widen. Apologies if you are tired of seeing me post this same graphic. Other graphical perspectives at

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Zack Labe

@ZLabe

4 years

Wow, January 2020 was the warmest on record and greater than 3°C above the 1981-2010 climate average in Europe. The average global temperature was also the highest on record. 🔥 More info ( @CopernicusECMWF ):

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Zack Labe

@ZLabe

4 years

End of 2019 reminder - 5 warmest years on record are in the last 5 years. Plot shows global climate variability (bumps) and climate change (long-term upward trend). The 12-month running mean is >1.2°C above pre-industrial levels. [Description of graph: ]

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Zack Labe

@ZLabe

4 years

This is quite astounding... Today's #Arctic sea ice extent is almost 500,000 km² *lower* than the previous record low for the date [using JAXA data]

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Zack Labe

@ZLabe

3 years

This is Arctic climate change ⬇️ "...the thickest ice—usually more than four years old—had declined by more than 86% since 1985 to make up just 2% of total ice in 2020"

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Zack Labe

@ZLabe

9 months

Oh look, it's me, interrupting your evening with another outrageous climate graph. Higher resolution available at

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Zack Labe

@ZLabe

4 years

Climatological seasons in 2019... the global temperature is rising 📈🔥 Dec-Feb : 3rd warmest on record Mar-May : 2nd warmest on record Jun-Aug : *warmest on record* Sep-Nov : *warmest on record* (tied) [Data information: ]

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Zack Labe

@ZLabe

4 years

A historic event is ongoing in the #Arctic . We have to pay attention to these climate change indicators.

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Zack Labe

@ZLabe

3 years

This is really quite striking...

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Zack Labe

@ZLabe

5 months

It was an unbelievable year for global climate. As data is released in the first two weeks of January, you are going to be hearing all about these new climate change records. Apologies for all my graphs in advance!! 😬 Spiral below produced by @NASAViz :

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Zack Labe

@ZLabe

1 year

A striking visualization of human-caused climate change - watch what happens in the Arctic... 🫠 Temperature anomalies by latitude band (zonal mean) from 1880 to 2022. Visualization produced by @NASAViz at . Data from @NASAGISS at .

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Zack Labe

@ZLabe

1 year

🚨 Carbon dioxide (CO₂) levels set a new *record high* in May 2023 - 424.00 ppm (seasonal max) "... and represents the fourth-largest annual increases in the peak of the Keeling Curve in NOAA’s record." + Press Release: ( @NOAA ):

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Zack Labe

@ZLabe

3 years

I'm running out of ways to say record-breaking, so here's just the graph...

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Zack Labe

@ZLabe

11 months

The negative Antarctic sea ice anomaly has continued to widen for many weeks to the now historic gap. Ice growth has been much slower than typical, and recall that this February also set the new record low for the seasonal minimum. Seasonal cycle graphs

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Zack Labe

@ZLabe

1 year

Uh, how large is this sea ice anomaly going to get? 🥴 More visualizations at . More background on this ongoing extreme event at and .

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Zack Labe

@ZLabe

1 year

Every day I receive messages that the Earth is cooling. It's both amusing and embarrassing. Anyways, here's an animation of what is actually happening to our planet's temperature... 📈🌡️ Created by @NASAViz at using @NASAGISS GISTEMPv4 data to 2022.

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Zack Labe

@ZLabe

11 months

Absolute magnitude of the #Antarctic sea ice anomaly is nearly one of the largest on record. It is especially striking for this time of year. While sea ice is growing (austral winter), it's happening much slower than typical. Find the seasonal cycle here:

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Zack Labe

@ZLabe

11 months

Same story continues in the #Antarctic over the last few days. Sea ice extent remains more than 2 million square kilometers below average and easily a record low for the date. More graphs at

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Zack Labe

@ZLabe

3 years

Summers are getting even hotter.

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Zack Labe

@ZLabe

3 years

2020 was the warmest year on record for the global ocean 🥴 + Data: http://159.226.119.60/cheng/ + Paper: + Summary:

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Zack Labe

@ZLabe

1 year

Are you paying attention? Last month observed the hottest May global sea surface temperatures on record... [Data from ]

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Zack Labe

@ZLabe

1 year

#Antarctic sea ice continues to melt and is quickly approaching the lowest extent on record in the satellite-era. This previous record was set just last year... Find more visuals at .

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Zack Labe

@ZLabe

1 year

ICYMI - 2022 was the hottest year on record for our oceans. We are tired of saying this every year. 🥹 + Data: + Study: + Summary:

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Zack Labe

@ZLabe

2 years

Wow, temperatures exceeded 5°C above average (relative to the 1951-1980 climate baseline) across a massive area of Eurasia last month 🔥 [Data information: ]

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Zack Labe

@ZLabe

1 year

Same story applies - the unprecedented loss of #Antarctic sea ice for this time of year... More graphs at . Data from @NSIDC .

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Zack Labe

@ZLabe

1 year

Uh, the #Antarctic sea ice anomaly continues to grow and is really a pronounced outlier for this time of year in our satellite record... 🥴 + View other perspectives (including a narrower graph zoom):

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Zack Labe

@ZLabe

2 years

Welp, I just had to extend the bottom of this graph... The ice is melting, and the oceans are rising 🌊 Data from GRACE(-FO) satellite observations. Graphic from: . More info on data: .

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Zack Labe

@ZLabe

1 year

I've been wanting to get this data visualized on my climate change indicators page, so here it is: - carbon dioxide over nearly the last one million years

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Zack Labe

@ZLabe

4 years

I'm waiting for the refreeze. [*Note that the basin is geographically constrained (same maximum sea ice cover = flat line). Map: ]

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Zack Labe

@ZLabe

1 year

Due to anomalously low sea ice conditions at both poles (especially the Antarctic), current global ice extent is the lowest on record for today's date... + More graphical perspectives of the satellite-era at:

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Zack Labe

@ZLabe

1 year

Wow, the #Antarctic sea ice anomaly continues to grow... More visualizations: More info on this extreme event:

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Zack Labe

@ZLabe

1 year

Levels of #Antarctic sea ice continue way below any other year in our satellite record for the date, yikes... Again, other visualizations available at . Or read more about this ongoing extreme event in and

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Zack Labe

@ZLabe

2 years

Over the last several decades, the #Arctic is warming nearly four times faster than the global average...

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Zack Labe

@ZLabe

4 years

We are now very close to the all-time record low sea ice extent in the Siberian #Arctic (2012). [Regions include the East Siberian, Laptev, and Kara Seas]

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Zack Labe

@ZLabe

1 year

And global sea-ice extent has now set a new *all-time* record low... ➡️ Arctic (2nd lowest on record for date) + Antarctic (lowest on record for date) [Graphics: . Data from for the satellite-era. I am using a 5-day running mean.]

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Zack Labe

@ZLabe

2 years

Well it was another year with the same climate change story. Surprise! Red shading shows warmer than average temperatures. Overall, the average global temperature in 2021 was +0.85°C (1.53°F) above the 1951-1980 baseline (or +1.12°C (2.02°F) above 1880-1920).

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Zack Labe

@ZLabe

2 years

#Antarctic sea ice extent has stayed below the previous all-time record low for over two weeks now...! 😵‍💫 [Preliminary data using the 5-day trailing mean; explore with ]

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Zack Labe

@ZLabe

6 years

The most intense surge of moisture/warmth (relative to average) for this event will be pushing over the North Pole tomorrow. Temperatures projected near 0°C. Meanwhile, brutal cold remains over Europe. Graphics available from

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Zack Labe

@ZLabe

5 years

No surprises here - Arctic Ocean warming stripes. The Arctic is warming faster than anywhere else in the world. #ShowYourStripes #MetsUnite Explore your own climate change stripes!

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Zack Labe

@ZLabe

5 years

Yikes 😬

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Zack Labe

@ZLabe

1 year

#Antarctic sea ice continues as the lowest on record for the date (in the satellite-era). The visual here shows how anomalous it actually is for this time of year. + More graphs at . Data from @NSIDC .

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Zack Labe

@ZLabe

5 months

Uh, temperatures over the last three months in the Northern Hemisphere surpassed the previous record by about 0.5°C! Data from

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Zack Labe

@ZLabe

3 years

Carbon dioxide (CO₂) averaged ~414 ppm in December 2020. 10 years ago December averaged ~390 ppm. + Graphic ( @NOAA_ESRL ):

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Zack Labe

@ZLabe

4 years

The ongoing loss of multi-year (old) sea ice is one of the most striking visuals of #Arctic climate change. Younger sea ice is generally thinner & more vulnerable to melt with numerous impacts to society & the polar ecosystem. Latest update via @NSIDC :

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Zack Labe

@ZLabe

4 years

*New Record* -- 2020 averaged the lowest #Arctic sea extent in the satellite-era for the month of October. It was 3,070,000 km² below the 1981-2010 average! Data from @NSIDC . The previous October record was 2019...

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Zack Labe

@ZLabe

11 months

With ice growth remaining slow, the record #Antarctic sea ice anomaly (negative departure from average) continues to somehow get larger in size... Seasonal cycle graphs at . More info at .

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Zack Labe

@ZLabe

5 years

#Arctic air temperature rank by month over the satellite era - now updated through October 2019... + Ranks: 1=warmest (red), 41=coldest (blue) + Download visual:

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Zack Labe

@ZLabe

2 years

It appears that 2022 has now set a new *all-time* record low sea ice extent in the #Antarctic ... [*Note this is preliminary daily data from the @NSIDC . There will be small differences between satellite products and temporal averaging methods.]

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Zack Labe

@ZLabe

3 years

Temperature anomalies by latitude band for January 2021 - check out the #Arctic ! [Plot shows zonal-mean surface air temperature anomalies, where latitude = x-axis (not scaled by distance). Data from @NASAGISS (GISTEMPv4)]

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Zack Labe

@ZLabe

10 months

Well then. More sea ice figures at: . Data from: .

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Zack Labe

@ZLabe

2 years

Antarctic sea ice extent has fallen to the all-time 2nd lowest on record - using daily data from @NSIDC (satellite-era)

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Zack Labe

@ZLabe

4 years

Persistent warmth continues - temperature anomalies projected in excess of 20°C over Siberia this week 🔥 [Map: ]

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Zack Labe

@ZLabe

11 months

Global temperature anomalies by month through May 2023. I find this type of data much more concerning than brief regional extreme graphs. Note: M = sunspot cycle max, m = sunspot cycle min, V = volcano [Data from @NASAGISS . Graphic was created by ]

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Zack Labe

@ZLabe

3 years

ICYMI - the last three Septembers were the hottest on record since at least 1880 🌡️ [Data information: ]

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Zack Labe

@ZLabe

3 years

November temperature anomalies in the #Arctic since 1950 - watch what happens... [Data from @CopernicusECMWF ERA5 reanalysis]

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Zack Labe

@ZLabe

5 years

This is one of my favorite visuals, especially this time of year (season transitions) - migration patterns of birds varying with air temperature using public science data ( @Team_eBird / @CornellBirds ). [Animation/description by @NOAA_SOS at ]

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Zack Labe

@ZLabe

4 years

The 12-month running mean global temperature anomaly is statistically tied for the warmest on record (with 2016, in ERA5 data). What a year. + More details:

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Zack Labe

@ZLabe

1 year

An update through 2022 for this alarming climate change animation... "The motion has led to this visualization being nicknamed 'the climate jellyfish'" 🪼- Animation by @NASAHyperwall . Data from GISTEMPv4 using a 1951-1980 baseline.

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Zack Labe

@ZLabe

2 years

Watch what happens in the #Arctic ... 🌡️ Temperature anomalies by latitude band for each year from 1880 to 2021. Visualization by @NASAHyperwall at

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Zack Labe

@ZLabe

2 years

Last month observed temperature anomalies in excess of 5°C in large parts of the Arctic (again)... Overall, the average March 2022 global air temperature was +1.05°C above the 1951-1980 climate baseline.

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Zack Labe

@ZLabe

11 months

The #Antarctic sea ice departure has actually grown in the last few days. Summary of the related atmospheric drivers, like the Amundsen Sea Low, can be found from the @NSIDC at . Interannual variability is very large! More graphs: .

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Zack Labe

@ZLabe

1 year

Well the extreme event in the #Antarctic certainly continues... + More visualizations of Antarctic sea ice:

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Zack Labe

@ZLabe

4 years

*New Record* -- 2020 averaged the lowest #Arctic sea extent in the satellite-era for the month of July. It was 2,190,000 km² below the 1981-2010 average! Data from @NSIDC .

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Zack Labe

@ZLabe

1 year

I periodically post this visualization reminder as summer approaches in the Northern Hemisphere - think heatwaves 🫠 The changing distribution of land temperature anomalies since 1950... Animation is by @NASAViz using GISTEMPv4 data. More information at .

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Zack Labe

@ZLabe

4 years

Total #Arctic sea ice extent is currently the 6th lowest on record (JAXA data) Compared to previous decades: • about 430,000 km² less the 2000s mean • about 990,000 km² less the 1990s mean • about 1,330,000 km² less the 1980s mean Additional plots:

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Zack Labe

@ZLabe

4 years

🚨 Last month was statistically tied for the *warmest* April on record for our planet. Striking 'warmth' across northern Siberia again. Data from ERA5. Summary at

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Zack Labe

@ZLabe

1 year

Global sea level rise and its accelerating rate... 🌊 Latest satellite-derived data updated from through most of 2022

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Zack Labe

@ZLabe

4 years

This year's temperatures are the warmest on record for the #Arctic sea ice melt season... [Data from GISTEMPv4 averaged over the April to July]

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Zack Labe

@ZLabe

6 months

Last month was the most anomalous on record for temperatures in the Northern Hemisphere... [Data from @CopernicusECMWF ERA5 reanalysis]

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Zack Labe

@ZLabe

7 months

ICYMI - looking back at last month's global temperature compared to every previous September month... Data from

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Zack Labe

@ZLabe

1 year

#Antarctic sea-ice area is easily the *lowest* on record for today's date...

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Zack Labe

@ZLabe

1 year

Yay! It's that time of year again (season transitions) where I share one of my favorite visualizations - migration patterns of birds varying with air temperature using community science data ( @Team_eBird / @CornellBirds ). Enjoy! 🙂 Animation created by

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Zack Labe

@ZLabe

11 months

Once again, as a result of unusually low sea ice conditions at both poles (especially in the Antarctic), global ice extent is currently the lowest on record for the time of year... + More graphical perspectives of the satellite-era at:

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Zack Labe

@ZLabe

4 years

August 2020 was another month that the Arctic is yelling for you to pay attention.

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Zack Labe

@ZLabe

1 year

Last month was the 4th warmest February on record globally since at least 1880 - preliminary @NASAGISS data [Data/methods: ]

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Zack Labe

@ZLabe

11 months

Okay... For more info: . For more graphs: .

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Zack Labe

@ZLabe

10 months

Uh, yeah, this is still happening... For more visualizations of the historic lack of sea ice in the #Antarctic (during July): .

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Zack Labe

@ZLabe

3 years

🚨 Last month's total #Arctic sea ice volume averaged the 2nd lowest on record (after 2017) for the month of January [Graphic: . Data: PIOMAS]

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Zack Labe

@ZLabe

2 years

Five hottest June-July periods for land areas around the world: 2018, 2019, 2020, 2021, 2022 (new record) 🥹

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Zack Labe

@ZLabe

1 year

An update to the clever visualization for communicating long-term trends versus short-term variability in the global temperature record #ClimateChange Available from @skepticscience at .

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Zack Labe

@ZLabe

1 year

No. Volcanoes are *not* responsible for the current long-term warming of our planet (i.e., climate change). I used to get a lot of messages about "the sun" (no still) and lately it's now "volcanoes" (🙄). Figure from @IPCC_CH :

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Zack Labe

@ZLabe

2 years

Annual temperatures relative to 1880-1920 levels 📈🔥 1. 2020 +1.29°C 1. 2016 +1.29°C 3. 2019 +1.25°C 4. 2017 +1.19°C 5. 2015 +1.17°C 6. 2021 +1.12°C ⬅️ 6. 2018 +1.12°C 8. 2014 +1.02°C 9. 2010 +0.99°C 10. 2005 +0.95°C 10. 2013 +0.95°C Graph by

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Zack Labe

@ZLabe

5 years

#Arctic sea ice extent continues as a record low for the date. It is ~250,000 km² below the prior record low, which was set just last year.

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Zack Labe

@ZLabe

11 months

I temporarily added another figure of #Antarctic sea ice, which will be updated at while the record anomaly continues... This graph better shows that while sea ice is growing (Austral winter), it's growing much slower than average. The deviation is huge.

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Zack Labe

@ZLabe

4 years

The 12-month running-mean global temperature anomaly is more than +1.3°C (relative to 1880-1920)... 📈 Data (GISTEMPv4) updated through September 2020. Graphic/description available at

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Zack Labe

@ZLabe

1 year

The extent of global sea ice is now tied for the lowest ever recorded in the satellite-era... [Graphics: . Note: the poles are affected by very different Earth system processes/seasonality. I am using a 5-day running mean.]

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Zack Labe

@ZLabe

2 years

Temperature anomalies greater than 5°C above average were observed across a large portion of the #Arctic Circle in February... 🔥 [Data from @CopernicusECMWF ERA5 relative to 1981-2010]

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Zack Labe

@ZLabe

5 years

2018. Another year of rising carbon dioxide (CO₂). That is all. [Animation by ]

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Zack Labe

@ZLabe

4 years

The extent of sea ice in the northernmost portions of the #Arctic is currently the lowest ever observed... [Note that the Central Arctic is approximately ≥80°N; see region #11 at ]

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Zack Labe

@ZLabe

1 year

The lack of #Antarctic sea ice going into the new year is clearly an outlier compared to any other year in our satellite record.

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Zack Labe

@ZLabe

1 year

Update - December's climate change dashboard... [Graphic available at ]

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Zack Labe

@ZLabe

1 year

Oh, just posting this for no particular reason 😵‍💫 Latest monthly updates ( #ClimateChange ): + Global temperature: 📈 + Carbon dioxide (CO₂; new record high): 📈 + Methane (CH₄): 📈 + Nitrous oxide (N₂O; new record high) : 📈 Graphic available at

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