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Cryospheric Sciences

Cryospheric Sciences

Did you know… about worms surviving in permafrost for at least 46000 years?

September 29, 2023
Did you know… about worms surviving in permafrost for at least 46000 years?
Fig. 1 Shatilovich and colleagues discovered some (rather unexpectedly) still surviving eukaryotes, such as amoeba and this roundworm (nematode) in the long-term survival state called cryptobiosis (adapted from Shatilovich et al. 2023).

Lately permafrost makes the news more and more because of its enormous carbon stocks and its vulnerability to climate change. While permafrost greenhouse gas budget calculations are complex and harbour an ever-growing research community, its microbial ecology is still on the rise. A recent star are tiny roundworms that survived frozen in permafrost for 46’000 years. Take a short dip into this new ...[Read More]

Small step for reindeer – large leap for humankind?

September 22, 2023
Photo of a reindeer looking for food on the snow.
Fig 1 – A reindeer digging through snow to find food. [Credit: T. Windirsch]

Since several decades, there’s a lot of discussion in the permafrost ecosystem community on “rewilding” and “return to a natural state” in order to protect ecosystems and to reduce the impacts of climate change. Reindeer and other herbivores influence the insulation regime of the ground and could thereby preserve the frozen state of permafrost ground. Is there a way to utilise this effect to our b ...[Read More]

Looking for the Window during Fieldwork

September 15, 2023
Looking for the Window during Fieldwork
Qaanaaq fjord in Northern Greenland, 79°N [Credits: Katie Sipes].

Arctic fieldwork is a meticulous dance with the ever-fickle weather, where nature’s temperament can determine the course of scientific endeavors. Rain or fog can swiftly put a halt to even the most well-laid plans. This holds true for Greenland, where proximity to the ice cap doesn’t shield researchers from the capriciousness of the climate. In August 2023, the Deep Purple ERC Project ...[Read More]

Did you know there’s a (relatively new) treaty for the Central Arctic Ocean?

September 8, 2023
Did you know there’s a (relatively new) treaty for the Central Arctic Ocean?
Figure 1: Arctic Sea Ice. [Credits: Lisa Winberg von Friesen, private archives]

Even as regular readers of the Cryosphere Blog , you might still be unfamiliar with the large amount of regulation that surrounds the cryosphere – and the research that’s being done on it. As effective regulation of our environment is needed, we need more scientists to understand the law and more lawyers to understand the science. So, brace yourselves and hold on tight, while we run through one of ...[Read More]

We are back – with 4 Arctic fieldwork stories!

September 1, 2023
We are back – with 4 Arctic fieldwork stories!
Walking to a glacier in NE Greenland. Photo credit: Maria Scheel

You might have missed our weekly blog posts, but we are back! This week’s post highlights four field work campaigns our cryo community conducted. Join us on a journey to Greenland, Svalbard and Alaska to learn about methane emissions, glacier flows, tundra fires and ice microbes. Chasing methane in Greenland The subglacial environment of the Greenland Ice Sheet is a relatively new discovered ...[Read More]

Some icy summer reads – the blog goes on holiday

July 14, 2023
A photo of a sunset over Arctic sea ice and a photo of yellow safety rubber shoes facing that sea.

The cryosphere blog is taking a summer break but not without first providing you with your beach/airplane/train/fieldwork/balcony summer reading list to make you miss us a tiny bit less. Continue reading this post to explore some summer inspiration. Like a lot of northern countries who take long summer breaks to enjoy the long hours of light (midnight sun) after a dark winter, the Cryoblog is also ...[Read More]

Did you know there is light pollution even in the Arctic?

July 7, 2023
Did you know there is light pollution even in the Arctic?
Light pollution exists even in the Arctic from, for example, cruise ships, cargo ships and research vessels. [Credit: Michael O. Snyder]

Light emissions are increasing worldwide and much of the world is light polluted due to excessive and inefficient light use. This has negative consequences for many organisms, such as birds, insects, fish, plants and humans. Even in the high Arctic, which is remote and sparsely populated, and experiences the polar night for a large part of the year, there are artificial light sources which disturb ...[Read More]

Hidden Ice of the Greater Caucasus

June 30, 2023
Hidden Ice of the Greater Caucasus
Figure 1 . The prominent rock glacier in the headwater of the Juta River valley, Kazbegi region, Georgian Caucasus, visited by thousands of tourists each year. [Credit: Levan Tielidze].

In this week’s blog, Levan Tielidze tells us about the first inventory of rock glaciers from the Greater Caucasus as an important basis for further research of geomorphology and palaeoglaciology in this region. What are Rock Glaciers? Rock glaciers are distinctive geomorphological landforms of frozen debris that are supersaturated with ice. The low ice velocity or certain speed of movement and per ...[Read More]

An inclusive field team is a great field team: Strategies and resources

June 23, 2023
A scheme showing the 6 aspects leading to positive and inclusive fieldwork environment, including physical and mental well-being, team values, recognising and valueing diversity, rest days, dealing with stress, communication and daily checkin.
Key elements of a positive and inclusive field work environment. From Karplus, Young et al. (2023).

Fieldwork is essential to polar sciences, but who are the people that actually do the fieldwork these days? A great field team includes people spanning a diversity of scientific skills, but at the same time, a diversity of cultures, backgrounds, and identities also adds intrinsic value to team dynamics and the overall field work experience. As part of the International Thwaites Glacier Collaborati ...[Read More]

Did You Know That It Ain’t Easy Being Greenland?

June 16, 2023
Did You Know That It Ain’t Easy Being Greenland?
The shape of Greenland changes depending on the map projection. [Credit: Kate Berg]

As a reader of the Cryosphere blog, you may have spent a lot of time looking at the Greenland Ice Sheet, but do you really know what Greenland looks like? This “It Ain’t Easy Being Greenland” map is something I made for fun during the #30DayMapChallenge (an international project to complete one map a day during the month of November) and highlights how different the island country appears dependin ...[Read More]