Matt Harris
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mattrpharris.bsky.social
Matt Harris
@mattrpharris.bsky.social
Paleoclimate and ice core scientist @
Earth Sciences New Zealand.
Mostly climate, Antarctica, ice cores.
Recovering spectroscopist.

https://github.com/MRPHarris
Reposted by Matt Harris
This is the second part of the work we covered here, highlighting that CO2 is the dominant forcer in temperature and sea level changes during ice age cycles.

(It's also a great chance for others to cover; this has not been widely reported. There's even an old ice core now that can test this!)
October 23, 2025 at 4:55 PM
Reposted by Matt Harris
🧪🧵 Future change to #ThwaitesGlacier, Antarctica constitutes the largest uncertainty in #sea-level rise forecasts. The Science Coordination Office of the International Thwaites Glacier Collaboration recently issued a briefing document summarising some key findings - thwaitesglacier.org/findings
October 26, 2025 at 9:35 PM
HYSPLIT user forum is down. US gov shutdown victim? hysplitbbs.arl.noaa.gov

🧪
hysplitbbs.arl.noaa.gov
October 26, 2025 at 11:10 PM
Nice to see this paper led by A/Prof John Tibby (Uni of Adelaide) out this past fortnight. The argument for ENSO-driven mid-to-late Holocene drying in eastern Australia is perhaps less convincing than originally thought.

@ausquaternary.bsky.social 🧪

doi.org/10.1002/jqs....
Mid‐Holocene drying of K'gari lakes (subtropical eastern Australia) necessitates re‐evaluation of the El Niño–Southern Oscillation climate links and future drying risk
The Holocene history of Australia's climate is surprisingly poorly understood. This is, in part, because of the relatively weak forcing of Holocene climate versus that of the late Pleistocene. Howeve....
doi.org
October 16, 2025 at 4:19 AM
Reposted by Matt Harris
UGH! When will it end. 😭

"Effective October 15, 2025, due to non-renewed funding, NSIDC has suspended or reduced several Sea Ice Today tools and services."

nsidc.org/data/user-re...
October 15, 2025 at 6:54 PM
Reposted by Matt Harris
Reposted by Matt Harris
NSF: The vessel [US Antarctic research vessel NB Palmer] is planned to be returned to the operator after a final cruise in October 2025.  
www.nsf.gov/geo/opp/upda... @carlosmoffat.com
Update on Nathaniel B. Palmer
www.nsf.gov
September 11, 2025 at 3:11 PM
Reposted by Matt Harris
"evidence is emerging for rapid, interacting and sometimes self-perpetuating changes in the Antarctic environment"
New review out today led by @climatenerilie.bsky.social brings together the rapid changes unfolding in the Antarctic. It's powerful, and sobering, reading.
Emerging evidence of abrupt changes in the Antarctic environment - Nature
Abrupt changes are developing across Antarctica’s ice, ocean and biological systems; some of these changes are intensifying faster than equivalent Arctic changes, potentially irreversibly, and their i...
www.nature.com
August 20, 2025 at 11:41 PM
Reposted by Matt Harris
I am not sure how many people realize the huge array of field affected by these cut to science agencies. For example, the NSF quietly stopped hosting the public available USAP photo library last month, a resource of thousands of historic United States Antarctic photos dating to the 1940s. #histsci
This is profoundly bad. The data generated by NASA feeds research in many, MANY disciplines. I, for instance, am a historian, and my dissertation (now book project) uses satellite imagery as a major source for exploring the historical relationship between people and the environment.
NASA’s acting chief calls for the end of Earth science at the space agency arstechnica.com/space/2025/0...
August 17, 2025 at 11:00 PM
It's not uncommon to look across the bay and see Wellington getting drenched.

Photo from Monday:
August 14, 2025 at 2:44 AM
Reposted by Matt Harris
Get your tickey here for a virtual journey ✈️ to #Antarctica with @bas.ac.uk ! Perfect for kids and adults alike ❄️🥼🧪🇦🇶
Sign up➡️ tickettoantarctica.com
August 13, 2025 at 2:26 PM
Reposted by Matt Harris
We’ve collected the oldest ice core, now it’s time to analyse it! 🔍 💻

The @newscientist.com have a new icy-cool video, speaking to BAS scientists about the Beyond EPICA project, highlighting why this work is so important in the face of climate change.

www.newscientist.com/video/249042...
August 12, 2025 at 10:07 AM
Reposted by Matt Harris
Nat Geo would kill for legit science-driven adventure like they found in “For Winter,” over content less credibly grounded in pursuit of knowledge +humans pushing limits. Instead they’ve (Disney?) gotten cold feet & deeply disrespected my colleague Ali & her family. defector.com/why-did-nati...
Why Did National Geographic Disappear Its Own Documentary About A Queer Climate Scientist? | Defector
If you’re not a particular kind of mountain sports nerd, you might not be familiar with the Banff Centre Mountain Film Festival World Tour. But for people who live their lives in the overlapping circl...
defector.com
July 30, 2025 at 6:11 PM
Reposted by Matt Harris
🌊❄️🧪 🇦🇶 Please share:

We have learned that the National Science Foundation is moving ahead with plans to decommission the U.S. Research Vessel/Ice Breaker Nathaniel B. Palmer this October.

If you care about Antarctic research, please read on (1/n)
July 25, 2025 at 7:50 PM
Reposted by Matt Harris
Applications for the Leanne Armand award are now open. This award funds early and mid-career researchers based in Australia to access training in micropaleonotology. Applications are due 28th September, all details can be found on the AQUA website […]
Original post on fediscience.org
fediscience.org
July 21, 2025 at 8:19 AM
Reposted by Matt Harris
📢 New paper alert! 📢

New insight into how sea ice controls the ocean uptake of carbon dioxide around Antarctica, obtained from the unique year-round Rothera Time Series.

Delighted to be part of this study, led by the very excellent Elise Droste.

🧪❄️🥼🌊

www.nature.com/articles/s43...
Sea ice controls net ocean uptake of carbon dioxide by regulating wintertime stratification - Communications Earth & Environment
Interannual variability of ocean uptake of carbon dioxide is governed by winter sea ice cover, according to analysis of carbonate chemistry observations along the West Antarctic Peninsula.
www.nature.com
June 18, 2025 at 12:14 PM
For cryosphere/ice core folks: a 3-year postdoc on interpreting the gas records for the Australian Million Year Ice Core project has been advertised at @utas.edu.au. Applications close 13 July.

careers.utas.edu.au/cw/en/job/50...
Current Vacancies
careers.utas.edu.au
June 16, 2025 at 9:32 PM
Reposted by Matt Harris
We are recruiting a PhD student for a well-supported PhD project (including $12k/yr scholarship topup and project costs).

Helping to resolve Australia's vertical land motion for sea level

More info: www.utas.edu.au/research/deg...
1/2
Available projects for research degrees | University of Tasmania - Machine learning and Australia's shape
The project seeks to improve the accuracy of estimates of Australia's ...
www.utas.edu.au
June 16, 2025 at 12:11 AM
Wonderful news for the Australian Antarctic Program! Excellent appointment.
June 12, 2025 at 1:43 AM
Reposted by Matt Harris
Can tropical corals find refuge at higher latitudes under future warming? In our new paper in Science Advances, we argue that coral range expansion will be *far too slow* for most coral species to outpace climate change. 🪸🌊
www.science.org/doi/10.1126/...

A short 🧵 (1/16)
June 7, 2025 at 9:06 AM
Great forum for palaeo folks in the Australasian region - join us!
Reminder that the #ausquaternary AGM is happening this Friday! A wonderful time to renew your membership if you haven't already...

https://aqua.org.au/membership/become-an-aqua-member/

#quaternaryscience
### AQUA Membership Membership is valid for one year, from January 1st to December 31st. Membership is due by February 28th for each calendar year. While members are welcome to renew their membership at any time throughout the year, their membership will only be valid until December 31st, and late subscriptions will not be adjusted pro-rata. Please be aware that your confirmation email may be filtered by your spam filter. Add wordpress@aqua.org.au to your safe senders list to prevent this from occurring. Your Name Email Address Affiliation Mailing Address Address Line 1 Address Line 2 City State ZIP Code Country Select Country Afghanistan Åland Islands Albania Algeria American Samoa Andorra Angola Anguilla Antarctica Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belau Belize Benin Bermuda Bhutan Bolivia Bonaire, Saint Eustatius and Saba Bosnia and Herzegovina Botswana Bouvet Island Brazil British Indian Ocean Territory British Virgin Islands Brunei Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Cape Verde Cayman Islands Central African Republic Chad Chile China Christmas Island Cocos (Keeling) Islands Colombia Comoros Congo (Brazzaville) Congo (Kinshasa) Cook Islands Costa Rica Croatia Cuba Curaçao Cyprus Czech Republic Denmark Djibouti Dominica Dominican Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Falkland Islands Faroe Islands Fiji Finland France French Guiana French Polynesia French Southern Territories Gabon Gambia Georgia Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guam Guatemala Guernsey Guinea Guinea-Bissau Guyana Haiti Heard Island and McDonald Islands Honduras Hong Kong Hungary Iceland India Indonesia Iran Iraq Ireland Isle of Man Israel Italy Ivory Coast Jamaica Japan Jersey Jordan Kazakhstan Kenya Kiribati Kuwait Kyrgyzstan Laos Latvia Lebanon Lesotho Liberia Libya Liechtenstein Lithuania Luxembourg Macao S.A.R., China Macedonia Madagascar Malawi Malaysia Maldives Mali Malta Marshall Islands Martinique Mauritania Mauritius Mayotte Mexico Micronesia Moldova Monaco Mongolia Montenegro Montserrat Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norfolk Island Northern Mariana Islands North Korea Norway Oman Pakistan Palestinian Territory Panama Papua New Guinea Paraguay Peru Philippines Pitcairn Poland Portugal Puerto Rico Qatar Reunion Romania Russia Rwanda Saint Barthélemy Saint Helena Saint Kitts and Nevis Saint Lucia Saint Martin (French part) Saint Martin (Dutch part) Saint Pierre and Miquelon Saint Vincent and the Grenadines San Marino São Tomé and Príncipe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Slovakia Slovenia Solomon Islands Somalia South Africa South Georgia/Sandwich Islands South Korea South Sudan Spain Sri Lanka Sudan Suriname Svalbard and Jan Mayen Swaziland Sweden Switzerland Syria Taiwan Tajikistan Tanzania Thailand Timor-Leste Togo Tokelau Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Tuvalu Uganda Ukraine United Arab Emirates United Kingdom (UK) United States (US) United States (US) Minor Outlying Islands United States (US) Virgin Islands Uruguay Uzbekistan Vanuatu Vatican Venezuela Vietnam Wallis and Futuna Western Sahara Samoa Yemen Zambia Zimbabwe Payment Item Full Membership (digital QA) – $70 Student Membership (digital QA) – $25 Concession Membership (digital QA) – $25 Proceed to Payment Please Wait…
aqua.org.au
April 9, 2025 at 9:18 AM
Reposted by Matt Harris
Reminder that the #ausquaternary AGM is happening this Friday! A wonderful time to renew your membership if you haven't already...

https://aqua.org.au/membership/become-an-aqua-member/

#quaternaryscience
### AQUA Membership Membership is valid for one year, from January 1st to December 31st. Membership is due by February 28th for each calendar year. While members are welcome to renew their membership at any time throughout the year, their membership will only be valid until December 31st, and late subscriptions will not be adjusted pro-rata. Please be aware that your confirmation email may be filtered by your spam filter. Add wordpress@aqua.org.au to your safe senders list to prevent this from occurring. Your Name Email Address Affiliation Mailing Address Address Line 1 Address Line 2 City State ZIP Code Country Select Country Afghanistan Åland Islands Albania Algeria American Samoa Andorra Angola Anguilla Antarctica Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belau Belize Benin Bermuda Bhutan Bolivia Bonaire, Saint Eustatius and Saba Bosnia and Herzegovina Botswana Bouvet Island Brazil British Indian Ocean Territory British Virgin Islands Brunei Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Cape Verde Cayman Islands Central African Republic Chad Chile China Christmas Island Cocos (Keeling) Islands Colombia Comoros Congo (Brazzaville) Congo (Kinshasa) Cook Islands Costa Rica Croatia Cuba Curaçao Cyprus Czech Republic Denmark Djibouti Dominica Dominican Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Falkland Islands Faroe Islands Fiji Finland France French Guiana French Polynesia French Southern Territories Gabon Gambia Georgia Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guam Guatemala Guernsey Guinea Guinea-Bissau Guyana Haiti Heard Island and McDonald Islands Honduras Hong Kong Hungary Iceland India Indonesia Iran Iraq Ireland Isle of Man Israel Italy Ivory Coast Jamaica Japan Jersey Jordan Kazakhstan Kenya Kiribati Kuwait Kyrgyzstan Laos Latvia Lebanon Lesotho Liberia Libya Liechtenstein Lithuania Luxembourg Macao S.A.R., China Macedonia Madagascar Malawi Malaysia Maldives Mali Malta Marshall Islands Martinique Mauritania Mauritius Mayotte Mexico Micronesia Moldova Monaco Mongolia Montenegro Montserrat Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norfolk Island Northern Mariana Islands North Korea Norway Oman Pakistan Palestinian Territory Panama Papua New Guinea Paraguay Peru Philippines Pitcairn Poland Portugal Puerto Rico Qatar Reunion Romania Russia Rwanda Saint Barthélemy Saint Helena Saint Kitts and Nevis Saint Lucia Saint Martin (French part) Saint Martin (Dutch part) Saint Pierre and Miquelon Saint Vincent and the Grenadines San Marino São Tomé and Príncipe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Slovakia Slovenia Solomon Islands Somalia South Africa South Georgia/Sandwich Islands South Korea South Sudan Spain Sri Lanka Sudan Suriname Svalbard and Jan Mayen Swaziland Sweden Switzerland Syria Taiwan Tajikistan Tanzania Thailand Timor-Leste Togo Tokelau Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Tuvalu Uganda Ukraine United Arab Emirates United Kingdom (UK) United States (US) United States (US) Minor Outlying Islands United States (US) Virgin Islands Uruguay Uzbekistan Vanuatu Vatican Venezuela Vietnam Wallis and Futuna Western Sahara Samoa Yemen Zambia Zimbabwe Payment Item Full Membership (digital QA) – $70 Student Membership (digital QA) – $25 Concession Membership (digital QA) – $25 Proceed to Payment Please Wait…
aqua.org.au
April 9, 2025 at 8:11 AM
Reposted by Matt Harris
These are really cool little nuggets of knowledge on polar climate science (not just because I made one). Check it out.
https://fediscience.org/@PolarRES/114240081171781681
PolarRES - Big discoveries in bite-sized stories?

👉 Check out our new PolarRES in Practice Stories!

Explore the project's […]
Original post on fediscience.org
fediscience.org
March 28, 2025 at 4:59 PM
New laser spectrometer for water isotopes arriving on Monday! 😁😁

We're joining the Picarro family after many attempts to resuscitate our venerable LGR-brand analyser.

A new era for the GNS ice core lab continuous flow analysis line!

📈📉📈📉📈
March 27, 2025 at 9:57 PM