Nathan Ernster

This was the second documented polar bear at Summit. There's a NatGeo article about the 2018 incident. EGRIP also had a bear in 2016, and mother/cub tracks nearby in 2024. In emailing with @aederocher.bsky.social about the bear's behavior, he said overland movements are actually pretty common

Letter from US Researchers in Support of Greenland's Self-Governance and Autonomy As researchers who work in and with Kalaallit Nunaat - Greenland, we strongly condemn President Trump’s attempts to purchase Greenland on behalf of the United States. We advocate for greater U.S. inve...

Aurora Roth and others have drafted a community letter affirming US researcher support for Greenland's self-governance and autonomy. Please consider reading and signing the letter (please use personal email if vulnerable to retaliation!) docs.google.com/forms/d/e/1F...

Has anyone called them histcones? 😀

Happy #AntarcticaDay! Today marks 65 years of the Antarctic Treaty. Here are a few of my favorite photos from my time in the south.
1. Kite aerial selfie, WAIS Divide 2. Lab bench in Scott's 1911 Terra Nova Hut 3. Belly hook in the Dry Valleys 4. View from Castle Rock

I took biochem in 2001, and for nearly 20 years read amino acid sequences daily… and I never knew Dayhoff named them or even the logic behind things like Q until last Friday (h/t Mike Janech). Also, this is another big Dayhoff moment for me. She was incredible!

#proteomics #bioinformatics

China, Oct/Nov 2024

I just received this cool piece of Greenlandic history. Rasmussen and Freuchen minted these coins in 1910 as a currency for their Thule Trading Station at Cape York #Arctic #Greenland

Had a wonderful time helping teach a 3-day Environmental Genomics and SeqCode workshop at Shandong University, followed by a weekend of hearing great talks at the Chinese Association of Microbial Ecology meeting in Qingdao, China.

Another polar deployment in the books! A busy and memorable season filled with interesting projects, beautiful fogbows, and a great crew. #Arctic #Greenland #SummitStation

Polar bear sightings far inland on the GrIS are rare. Thankfully (and amazingly) the bear showed little interest while passing through camp and carried on upwind over the horizon. Everyone is safe, wind direction has been consistent, and we're maintaining a 24-hour watch. 3/3

I discovered this just minutes after finishing when I made an unplanned stop at an elevated atmospheric monitoring station.

My head's always on a swivel here, but I have a new appreciation for how difficult it is to spot a bear even in clear conditions. 2/3

Field work in my final week at Summit Station, #Greenland ended with an unsettling surprise yesterday. Unbeknownst to me, a #polarbear was approaching from directly downwind while I was sampling snow south of station. 1/3

Snow sampling imprints #FieldWorkFriday #Arctic #Greenland

29 hour timelapse at Summit Station, Greenland. July 8-9, 2024 Midnight sun at Summit Station, Greenland

Back for another season in the midnight sun at Summit Station, #Greenland. Time-lapse from July 8-9, 2024
youtu.be/c7xQaP_fNc8

Looking forward to a week of cross-disciplinary lectures at the #RED24 astrobiology course in Le Teich, France

Happy #InternationalPolarBearDay!

Thrilled to have had the opportunity to present my poster at #PAM2022 @GFZ_Potsdam and to meet so many great people working on really exciting projects

A great day for a ski at the summit of the Greenland ice sheet. 72°35'N, 3210 m

I recently biked past what must be a candidate for the world's largest left-handed representation of DNA. Zittau, Germany @LHDNAHulk