Mastodawn

#EarthSystem: "The changes we report suggest that the #Arctic #Ocean ecosystem passed a #TippingPoint around 2009. How this change cascades through the food chain needs to be closely monitored as this has profound implications for us"
https://phys.org/news/2026-05-arctic-ocean-food-chain-disrupted.html?utm_source=nwletter&utm_medium=email&utm_campaign=weekly-nwletter

Arctic Ocean food chain is disrupted as a key tipping point has now been passed

An irreversible shift in the chemical makeup of the Arctic Ocean driven by climate change is disrupting the region's food chain, a study suggests. Widespread loss of Arctic sea ice has led to a sharp fall in levels of a key nutrient, affecting populations of plankton, fish, seabirds and marine mammals, say researchers. Their analysis reveals that exposure to sunlight of vast shallow regions of the ocean previously covered by ice fuels a process that breaks down the nutrient—nitrate—and removes it from seawater. The study appears in Communications Earth & Environment.

Phys.org

Dragofix 14h ago

Arctic Ocean passed a tipping point and scientists say it may never recover https://www.sciencedaily.com/releases/2026/05/260528082457.htm

#Arctic #ocean #TippingPoint

Arctic Ocean passed a tipping point and scientists say it may never recover

The Arctic Ocean may have crossed a dangerous tipping point. Scientists say the rapid disappearance of sea ice is triggering a hidden chemical shift that is stripping the ocean of nitrate — a nutrient essential for the tiny plankton that support Arctic life. As nitrate levels plunge, the entire food web could feel the impact, from fish and seabirds to whales and polar ecosystems.

ScienceDaily

Lumpenanalyst 3d ago

#EarthSystem #Cryosphere: "If this #feedback is incorporated into projections, #SeaLevelRise estimates may be revised upwards, and the #climate #TippingPoint may arrive sooner than expected. More than 680 million people in low-lying coastal areas would be directly affected." https://en.clickpetroleoegas.com.br/researchers-discover-that-the-more-ice-melts-in-antarctica-the-more-warm-water-can-reach-the-base-of-the-platforms-and-melt-even-more-a-scie-mhbb01/#goog_rewarded

Hacker News May 23

Software Engineering at the Tipping Point

https://io.google/2026/explore/workshop-2

#HackerNews #SoftwareEngineering #TippingPoint #TechTrends #Innovation #FutureOfTech

Google I/O 2026: Software engineering at the tipping point

Don’t miss Google I/O, featuring product launches, innovations, and insights. Tune in for the live keynotes and sessions.

dr. gianluca grimalda May 23

Day 65: I cross the Sepik river in a 9-hour night boat ride. I didn't know it was possible to sleep comfortably on betel nut bags, but it is. The quiet of the sunrise in the foggy dimmed-light awakening will never die in me. So the warmth of the fellow passengers and the skipper Bendol. Incidentally, his torch faded away soon after setting off. What would he have done if I hadn't lent me my own torch to navigate the boat in the night? This is typical Papua: no thinking about the future, everything will be alright.

I slow travel mainly to reduce my carbon footprint (by 10 times according to available estimates) but also to experience travel as most people in this world do.

#refusetofly #travel #slowtravel #decarbonise #climateemergency #globalwarming #climateBreakdown #collapse #TippingPoint #papuaisland #PNG #Wewak #Sepik #WestSepik #researcher #researcherlife #AFuoco

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dr. gianluca grimalda May 17

The original plan was to take a boat straightaway after my arrival in Angoram, in the Sepik river, but I thought I'd better take a rest instead - even if I had nothing booked. the local priest put me up and in the morning local guy Morgan shows me arob Ng the local market, open everyday. the main food from here is sago, a tree from the palm oil family, from which the locals take almost everything. from the internal pulp that is eaten raw or processed to make flour, to its leaves that are used to make up houses' roofs. Watch YT video:

https://youtube.com/shorts/cdcVaPis2MY

I slow travel mainly to reduce my carbon footprint (by 10 times according to available estimates) but also to experience travel as most people in this world do. 78/

#refusetofly #travel #slowtravel #decarbonise #climateemergency #globalwarming #climateBreakdown #collapse #TippingPoint #papuaisland #PNG #Wewak #Sepik #WestSepik #researcher #researcherlife #AFuoco

Elisabeth M May 15

Guys. Can we talk about tipping? These tip screens are getting out of hand, right? I know a lot of people depend on tips but ... can we just, have prices? rather than marking up everything 15% at checkout? I am feeling some major demand avoidance building up in me

#tipping #tippingPoint #actuallyAutistic #nuerodivergent #adhd

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dr. gianluca grimalda May 14

Day 63: Big setback as only ferry serving Wewak has broken engine. The pastor looking after me recommends an alternative route through the Sepik river.

He leaves it late, but in the end he manages to find a place on the last truck of the day travelling to Angoram on the Sepik river. They leave me the privilege of travelling on the front of the truck where I have a comfy seat rather than the wooden benches all the other passengers use on the back. the scenery is very diverse from the ones I used to in Bougainville. there's no rainforest here, but rather grassland and bushes. it strikes me that even this very old, noisy and rusty truck is a luxury in comparison with the many who cannot afford it and walk over the main (and only) road. actually, we are lucky there's a road at all. This will stop at the Sepik river, as there's no bridge crossing over it.

I get to Angoram after an 8-hour drive. I have no idea where to stay and find a place to sleep in the local church (along with rats & insects).

https://youtube.com/shorts/xT5dboTbjP8

#refusetofly #travel #slowtravel #decarbonise #climateemergency #globalwarming #climateBreakdown #collapse #TippingPoint #papuaisland #PNG #Wewak #Sepik #WestSepik #researcher #researcherlife #AFuoco

I slow travel mainly to reduce my carbon footprint (by 10 times according to available estimates) but also to experience travel as most people in this world do.