Ulf Bergström

Motherfucking windfarms

Still a long way to go to 2030.

Overfishing has caused cod to halve in body size since 1990s, study finds Evolutionary change driven by intensive fishing led cod to ‘shrink’ from average 40cm length in 1996 to 20cm in 2019 Overfishing has led to a collapse in the eastern Baltic cod population, but over the past three decades the size of the fish themselves has also been dramatically and mysteriously shrinking. Now scientists have uncovered genomic evidence that intensive fishing has driven rapid evolutionary changes that have contributed to these fish roughly halving in average body length since the 1990s. Continue reading...

Overfishing has caused cod to halve in body size since 1990s, study finds

We tend to shift our baselines fairly quickly. In the 1900s, this June would have been warmer than average.

Globally representative evidence on the actual and perceived support for climate action - Nature Climate Change Global support and cooperation are necessary for successful climate action. Large-scale representative survey results show that most of the population around the world is willing to support climate ac...

Important: if you think that governments should move faster on climate, enacting policies now for a cleaner, greener future, *** you are in the MAJORITY ***. A huge majority.

HT to @tomheap.bsky.social for digging out this Nature paper on who actually wants what.

www.nature.com/articles/s41...

DN Debatt. ”Vår forskning kan inte viftas bort som åsikter” I USA ifrågasätts vetenskapen och forskningens frihet undergrävs medvetet av styrande politiker.

Från klimatpolitik till kriminalpolitik viftar regeringen undan välbelagd forskning som ”olika åsikter”. Det är inte bara kunskapsförsktande utan lägger grunden för ineffektiv och i värsta fall farlig politik.

Bra att dessa drygt 1000 forskare säger ifrån.

Vi ser oroande tendenser till att kunskap och forskning relativiseras eller ignoreras även i Sverige. Den utvecklingen behöver vi vända för att bevara ett välmående och demokratiskt samhälle. Här ett debattinlägg som har undertecknats av över 1000 forskare i landet: www.dn.se/debatt/var-f...

Många texter om missade klimatmål nu. Påminner om att målen är långt ifrån tillräckliga för att vara i linje med Parisavtalet. Gäller också på global nivå, se här från IPCC – även om alla länders åtaganden fullgörs helt och hållet, beräknas vi nå 3,2 grader 2100. Det är en värld vi inte känner.

Sill — världens vanligaste ryggradsdjur. Varför äter vi inte mer? - Meny Det finns enormt mycket sill. Och sill är väldigt nyttigt. Ändå äter vi bara en fjärdedel av det som fiskas. Resten blir foder. Hur kan det ändras?

Snart är det påsk, och sillen har en given plats på bordet. Idag äter vi sill/strömming främst till större högtider, men sillen har spelat en enormt viktig roll för Sveriges utveckling. Den skulle dessutom kunna ta plats på vardagsmatbordet igen. Här är 30 fascinerande minuter om havets silver.

Uppdrag granskning – Fisken vi ärvde "När de väl är borta, så är de borta för alltid". För 30 år sedan fiskades våra tre nationalfiskar - torsk, lax och strömming - i mängder i Östersjön. Idag går de knappt att få tag på. Vad är det som ...

If you have a chance to see the new Swedish documentary on the dire state of fish stocks and fisheries in the Baltic Sea, please do. We need a public debate on this issue also among our neighbours around the Baltic to find the political will to change the current dysfunctional system.

Study: Bottom Trawling in European Waters Costs Society up to €11 Billion Annually New research shows that bottom trawling — a damaging fishing practice subsidized by European taxpayers — costs billions, largely due to massive carbon dioxide (CO2) emissions. Forbidding the practice ...

Haven't looked into it, but seems certainly a significant number.
news.nationalgeographic.org/study-bottom...

Interesting study linking MPA guide with conservation outcomes. Link ➡️
www.cell.com/cell-reports...

Constructive and encouraging discusions today at the Baltic Sea seminar in Stockholm, on how to strengthen herring populations and restore ecosystem functions. Strong lineup of speakers, with the Swedish fisheries minister Kullgren, EU MEP Isabella Lövin among many others.

The full report from last year’s webinar on cost-effective marine restoration in the Nordics, co-hosted by @helcominfo.bsky.social & The Nordic Council of Ministers' Working Group for Environment and Economy (NME) is now available buff.ly/414XrRN

Vill du veta hur det går för Sveriges fiskbestånd så ta en titt på årets version av fiskbarometern

Land rise, has been a prominent feature of the coastal zone of the northern Baltic Sea since the last glaciation. Not so anymore, as the rate of sea level rise will nullify land rise for the rest of the century. For large portions of our European coasts though, prospects are much bleaker.

Fiskarnas rike Följ med på en magisk resa i Sveriges sjöar, hav och vattendrag. Naturfilmaren Martin Falklind tar oss med under ytan och låter oss träffa vattenvarelser vi knappt trodde fanns. Som flera hundra kilo ...

If you haven't followed the documentary Fiskarnas rike, you are in for a treat. Important tales about the world of fishes, with absolutely marvellous, BBC-quality, sequences of our Nordic species. Seven episodes in total, the last one broadcasted tomorrow.

Good initiative. I'd be happy to be included.

A Sunday cartoon - The epic conflict between fish and man

Great pack! I'd like to be added too please.

A four story building slightly obscured by 5 large trees. In front of the building is concrete paving and a long (horizontally) set of ca. 10 steps. The building is grey except for a prominent section sticking out towards the camera that is bright yellow with lots of glass windows.

Post doc at SLU Aqua - Mapping aquatic resources in a changing climate (based at our Uppsala, Sweden campus).

Fluency in English & R programming skills are key requirements.

I can highly recommend working with A/Prof Charlotte Berkström & @ulfbergstrom.bsky.social 🦑🧪🌎🐠

www.slu.se/en/about-slu...

LA wildfire damages set to cost record $135bn Some of the most expensive properties in the US have been wiped out by the fires.

If you think slowing or stopping #climate change is too expensive, you have it backwards.
Failing to slow or stop #climatechange is what's expensive.
www.bbc.com/news/article...

175 maps showing temperature change from 1850 to 2024

Mapping changes in temperature: 2024 edition

Bra att länsstyrelserna lyfter problemen i Västerhavet. Man föreslår följande åtgärder:
- Reglera fiske så att överfiskade bestånd kan återhämta sig
- Inrätta fler marina reservat med omfattande reglering
- Mer miljöövervakning och uppföljning för att säkra nödvändig kunskap

Piscivorous herring – a unique fish in the Baltic Sea ecosystem | slu.se In the coastal areas of the Baltic Sea, unusually large herring are sometimes caught, which has long raised questions. Are these large herring a separate population, or are they individuals that ha...

Atlantic herring is one of the most abundant fishes in the world. In two new studies, we show that some herring in the Baltic Sea have become fish eaters. These piscivorous herring are genetically unique, grow fast, and play an important role in regulating stickleback populations.

Beautiful way of drawing attention to an important message

#ProtectedPlanet January 2025 Update: 🌍

WDPA: is 305,195 (303,312 #ProtectedAreas), covering 244 countries & territories.

WD-OECM: is 6,484 (6,463 #OECMs), covering 15 countries & territories.

GD-PAME: No updates for January 2025.

https://buff.ly/400d9Nt

🚨🚨🚨 2024 was the warmest year on record globally. An astounding 32% of the Earth had it's single warmest year since 1940. 🔥🔥🔥

Weakening of the Atlantic Meridional Overturning Circulation abyssal limb in the North Atlantic - Nature Geoscience Mooring observations and hydrographic data suggest the Atlantic Meridional Overturning Circulation abyssal limb has weakened over the past two decades in the North Atlantic, most likely due to reduced...

The densest water in the world ocean forms around Antarctica, and then spreads out to flood the global abyss. We’ve seen the production of this water dwindle over the past few decades, a change that is now impacting the North Atlantic. 🌊🧪❄️

www.nature.com/articles/s41...

Ja, mycket läsvärd bok! Det känns allt viktigare att fokusera på det positiva för att behålla i alla fall en viss framtidstro.