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Posts by Emily Peterson 🏳️‍🌈🏳️‍⚧️

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From March 15 through March 26 there have been...
More than 100 monthly records & more than 700 daily records broken or tied.

Since March 1 there have been more than 1,100 daily records broken or tied across the nation.

Some record heat will remain through the weekend for areas of the Southwest.

3 weeks ago 198 87 9 8
Map of the lower 48 United States showing 0.25° GFS run from 18z on 20 March 2026. The variable is the 500 hPa geopotential height percentile rank considering ERA5. There is a record-breaking ridge across the Western U.S.

Map of the lower 48 United States showing 0.25° GFS run from 18z on 20 March 2026. The variable is the 500 hPa geopotential height percentile rank considering ERA5. There is a record-breaking ridge across the Western U.S.

Honestly, this historic heat dome across the West is really hard to put into words for me. Temperatures over 110°F (43°C) in March, shattering all-time monthly records on multiple consecutive days, and not just by a little.

➡️ I can confirm this is human-caused climate change.

polarwx.com/models/

1 month ago 861 382 45 22

Thinking again about how a single data center that mines Bitcoin in Akron uses 1/4 the electricity as all households in Cuyahoga County combined

1 month ago 81 39 2 0

alt text version

1 month ago 332 121 1 1
Decoded hourly weather observations at Fairbanks airport showing the low temperature of -46F on February 26, 2026.

Decoded hourly weather observations at Fairbanks airport showing the low temperature of -46F on February 26, 2026.

Fairbanks Airport low temperature Thursday morning of -46F (-43.3C) is the lowest temperature this late in the season since March 15, 1964, when the low was also -46F. #akwx #weather #Winter2026 @leahwrenn.bsky.social @coyotetrail.bsky.social @leepetersen.bsky.social

1 month ago 31 12 1 3

the party that wants to require ID to vote abruptly invalidating a thousand people’s IDs overnight seems like a pretty giant flashing red light

1 month ago 12876 4752 8 107

Oh good, overtime hockey, I’ve been meaning to have an extended heart attack

2 months ago 82 7 2 2
A narrow canyon with tall carved walls, a wash of cobble and gravel, and a partially cloudy sky.

A narrow canyon with tall carved walls, a wash of cobble and gravel, and a partially cloudy sky.

It seems to me that Death Valley is equally ancient and present all of the time.

2 months ago 127 14 4 1
Preview
Restored Peatlands Could Become Carbon Sinks Within Decades - Eos That’s much faster than what most scientists thought.

Restored Peatlands Could Become Carbon Sinks Within Decades eos.org/articles/res...

2 months ago 3307 813 52 43
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NSF GRFP applicants (and mentors): Was your application Returned Without Review and deemed ineligible despite fitting in the allowed topics?
1) Write NSF
2) Write your Congressperson
3) CC us at grfp@grant-witness.us so we can compile + follow up

Details and template at grant-witness.us/grfp-letter

2 months ago 164 202 6 18
Meme with text that reads “yeah I love the writing process.” The writing process:  Below the text is a generic figure sitting in front of a computer in various poses that look unhinged and are somehow productive.

Meme with text that reads “yeah I love the writing process.” The writing process: Below the text is a generic figure sitting in front of a computer in various poses that look unhinged and are somehow productive.

Dissertation time

3 months ago 6 0 0 0
Image of an Alaskan bog with water and red moss in the foreground and trees in the background.

Image of an Alaskan bog with water and red moss in the foreground and trees in the background.

Let’s make 2026 the year of the bog. The world’s most unique and interesting plants, clean water, cooler climate. Bogs deserve our thanks, care, and deep respect. Please join me and love a bog today.

3 months ago 955 251 33 35
Stack of blocks labeled, all modern digital infrastructure. A ratchet tipping over the entire stack is labeled AI. A load bearing pillar is labeled unpaid open source development. Another label is AWS, and Cloudflare and Unpaid Open Source Developers.

Stack of blocks labeled, all modern digital infrastructure. A ratchet tipping over the entire stack is labeled AI. A load bearing pillar is labeled unpaid open source development. Another label is AWS, and Cloudflare and Unpaid Open Source Developers.

Extremely upset that a throw-away XKCD joke somehow became the organizing principle for the Internet.

5 months ago 2812 858 34 26

we don't talk enough about the damage that widespread chromebook adoption by schools has done to computer literacy in children

5 months ago 654 80 23 9

Prohibited activities include advising Chinese graduate students. For reference, a recent Georgetown report estimated 16% of STEM graduate students in the US are Chinese nationals.

This would take out entire fields at the knees, which is perhaps the point.

5 months ago 764 404 23 15

To put this in scale, Elon Musk's salary from Tesla alone could fund the SNAP program for the entire country into 2034.

5 months ago 4772 2193 128 111
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Space Weather Message Code: WARK07
Serial Number: 135
Issue Time: 2025 Nov 06 0408 UTC

WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2025 Nov 06 0408 UTC
Valid To: 2025 Nov 06 1200 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

Space Weather Message Code: WARK07 Serial Number: 135 Issue Time: 2025 Nov 06 0408 UTC WARNING: Geomagnetic K-index of 7 or greater expected Valid From: 2025 Nov 06 0408 UTC Valid To: 2025 Nov 06 1200 UTC Warning Condition: Onset NOAA Scale: G3 or greater NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude. Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices. Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur. Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur. Radio - HF (high frequency) radio may be intermittent. Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

:Product: 3-Day Forecast
:Issued: 2025 Nov 06 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 6 (NOAA Scale
G2).
The greatest expected 3 hr Kp for Nov 06-Nov 08 2025 is 7.33 (NOAA Scale
G3).

NOAA Kp index breakdown Nov 06-Nov 08 2025

             Nov 06       Nov 07       Nov 08
00-03UT       5.33 (G1)    7.33 (G3)    4.67 (G1)
03-06UT       5.33 (G1)    6.00 (G2)    4.67 (G1)
06-09UT       5.67 (G2)    5.00 (G1)    4.00     
09-12UT       4.67 (G1)    7.33 (G3)    3.67     
12-15UT       4.33         6.33 (G2)    3.33     
15-18UT       4.00         4.67 (G1)    3.00     
18-21UT       5.67 (G2)    3.67         3.00     
21-00UT       6.67 (G3)    3.33         3.67     

Rationale: G3 (Strong) or greater geomagnetic storms are likely on 06-07
Nov due to multiple enhancements expected from a CH HSS and anticipated
CME arrivals.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Nov 06-Nov 08 2025

              Nov 06  Nov 07  Nov 08
S1 or greater   25%     25%     25%

Rationale: There is a chance for the greater than 10 MeV proton flux
reaching the S1 (Minor) threshold on 06-08 Nov due to the flare
potential of Region 4274.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R2 levels were observed over the past 24
hours. The largest was at Nov 05 2025 2207 UTC.

Radio Blackout Forecast for Nov 06-Nov 08 2025

              Nov 06        Nov 07        Nov 08
R1-R2           70%           70%           70%
R3 or greater   25%           25%           25%

Rationale: Probabilities have increased to 70% for R1-R2
(Minor-Moderate) and 25% for R3 (Strong) due to the continued activity
and complex structure of Region 4274.

:Product: 3-Day Forecast :Issued: 2025 Nov 06 0030 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # A. NOAA Geomagnetic Activity Observation and Forecast The greatest observed 3 hr Kp over the past 24 hours was 6 (NOAA Scale G2). The greatest expected 3 hr Kp for Nov 06-Nov 08 2025 is 7.33 (NOAA Scale G3). NOAA Kp index breakdown Nov 06-Nov 08 2025 Nov 06 Nov 07 Nov 08 00-03UT 5.33 (G1) 7.33 (G3) 4.67 (G1) 03-06UT 5.33 (G1) 6.00 (G2) 4.67 (G1) 06-09UT 5.67 (G2) 5.00 (G1) 4.00 09-12UT 4.67 (G1) 7.33 (G3) 3.67 12-15UT 4.33 6.33 (G2) 3.33 15-18UT 4.00 4.67 (G1) 3.00 18-21UT 5.67 (G2) 3.67 3.00 21-00UT 6.67 (G3) 3.33 3.67 Rationale: G3 (Strong) or greater geomagnetic storms are likely on 06-07 Nov due to multiple enhancements expected from a CH HSS and anticipated CME arrivals. B. NOAA Solar Radiation Activity Observation and Forecast Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was below S-scale storm level thresholds. Solar Radiation Storm Forecast for Nov 06-Nov 08 2025 Nov 06 Nov 07 Nov 08 S1 or greater 25% 25% 25% Rationale: There is a chance for the greater than 10 MeV proton flux reaching the S1 (Minor) threshold on 06-08 Nov due to the flare potential of Region 4274. C. NOAA Radio Blackout Activity and Forecast Radio blackouts reaching the R2 levels were observed over the past 24 hours. The largest was at Nov 05 2025 2207 UTC. Radio Blackout Forecast for Nov 06-Nov 08 2025 Nov 06 Nov 07 Nov 08 R1-R2 70% 70% 70% R3 or greater 25% 25% 25% Rationale: Probabilities have increased to 70% for R1-R2 (Minor-Moderate) and 25% for R3 (Strong) due to the continued activity and complex structure of Region 4274.

Map from NOAA titled showing North America and the North Pole with a color gradient overlay of aurora likelihood.

Map from NOAA titled showing North America and the North Pole with a color gradient overlay of aurora likelihood.

Map from NOAA titled showing North America and the North Pole with a color gradient overlay of aurora likelihood.

Map from NOAA titled showing North America and the North Pole with a color gradient overlay of aurora likelihood.

Aurora Forecast Update for 2025-11-06T04:10:04Z

WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2025 Nov 06 0408 UTC
Valid To: 2025 Nov 06 1200 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater
Additional Details Here.

5 months ago 19 5 0 3

The amount of AI generated art in slides at this conference, primarily used by older scientists, is killing me. Scientists please. Don’t use these ai platforms to make your figures or slides. They look bad and I have yet to see them meaningfully improve the message of talks.

5 months ago 1765 357 38 31
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A Kimono decorated with skeletons, from Japan, 1840-1860 CE,
now housed at the Victoria and Albert Museum in London

5 months ago 3116 1193 24 90
Post image

PNAS: Six-million-year-old ice discovered in Antarctica offers unprecedented window into a warmer Earth via our NSF COLDEX & US Antarctic Program. ❄️ www.pnas.org/doi/10.1073/...

5 months ago 379 74 14 6

Totally fascinating.

5 months ago 50 12 1 0
Someone has labeled their -20 C freezer with a taped-on sheet that says "I.C. Wiener, 405 W. ..." a reference to Futurama, where Fry is cryogenically frozen while delivering a pizza to a cryonics facility.

Someone has labeled their -20 C freezer with a taped-on sheet that says "I.C. Wiener, 405 W. ..." a reference to Futurama, where Fry is cryogenically frozen while delivering a pizza to a cryonics facility.

My general guideline for lab cold storage:

Trying to stop fungus from funging? 4 °C
Trying to stop enzymes from enzyming? -20 °C
Trying to stop chemistry from chemis-trying? -80 °C
Trying to stop molecules from moleculeing? -200 °C (liquid N2)

Trying to stop *all of it*? -273 °C

5 months ago 130 14 7 1
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No kings only kingfishers, kinglets, and kingbirds!
Rally in Bend, Oregon, drew thousands ….
#nokingsday #birders

6 months ago 410 65 3 3

I’m just happy we reclaimed the frog from the assholes. 🐸

6 months ago 113 7 2 1

Mods are asleep post brassicas

6 months ago 2019 651 52 36
Video

The following is REAL footage from Portland, 2025. Viewer discretion is advised.

6 months ago 55824 22580 1870 2148
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Preview
Researchers turn plastic into paracetamol Engineered <i>E. coli</i> can metabolize plastic waste into acetaminophen

ICYMI: Researchers at the University of Edinburgh have engineered a strain of Escherichia coli that relies on small molecules from waste polyethylene terephthalate (PET) plastic bottles to survive. cen.acs.org/biological-c... #chemsky 🧪

6 months ago 48 16 1 3

People get so angry about this, I’ve found that interesting. There is definitely some resistance to the idea of reading, not just the act of doing it.

But yeah I am not watching a video, ever, if I can help it.

6 months ago 795 47 23 7