Sign in

Mariano Koen-Alonso (He/Him)

@mkoenalonso.bsky.social
1.4K followers 1.5K following 378 posts

Marine and fisheries scientist; interested in marine ecology, food webs, and ecosystem-based management among many other things. Posts are my own.

PostsRepliesMedia
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 02/10/2026
I made!! I am at Darwin’s level!!🤪
040
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 29/09/2026
Govs are not monolithic; there are always those pushing to fulfill our obligations under international law, and those advocating to cherry pick what we do & don’t, often in response to sectoral/special interests. Nature often gets the short stick in these trade-offs. www.cbc.ca/news/science...
cbc.ca
4 years after a Canada-led global deal to protect nature, work on oceans is lacking | CBC News
Canada helped land a global agreement to protect nature in 2022. A new assessment shows how successful it's been.
010
Reposted by Mariano Koen-Alonso (He/Him)
David Ho @davidho.bsky.social · 27/09/2026
My former colleagues, Mark Cane and Stephen Zebiak, were the first to successfully predict El Niño more than a year in advance in the late 1980s. Now we’re really good at it, and know the consequences. It’d be irresponsible for governments not to take action. Read this from my buddy Jeff Shaman.
nytimes.com
Opinion | The Super El Niño Comes Bearing One Gift: Time to Prepare (Gift Article)
There’s still time to prepare.
415554
Reposted by Mariano Koen-Alonso (He/Him)
The Hill Times @hilltimes.com · 28/09/2026
UNLOCKED | Susan Riley: Public opposition builds to Carney’s rightward march, but not so much in the House By @susan_p_riley #cdnpoli buff.ly/UL8l7WU
223
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 28/09/2026
"We don't have an economy over the long term if we destroy the ecosystem" For a gov that prides itself about thinking long term, its willingness to accept serious environmental harm to expedite short-term economic benefits appears rather myopic. www.cbc.ca/news/politic...
cbc.ca
Speed over species? What experts are saying about Ottawa's new major projects bill | CBC News
The federal government says the purpose of Bill C-39 is to make project decisions in one year. But tucked inside are a dizzying array of more than 300 clauses that amend more than a dozen separate pie...
010
Reposted by Mariano Koen-Alonso (He/Him)
David Ho @davidho.bsky.social · 14/09/2026
I posted this thread to LinkedIn because I’m a glutton for punishment and the CDR shills are big mad.
1115111
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 10/09/2026
This settles @mark-carney.bsky.social’s gov position on sustainable development. I get we are living through massive geopolitical changes, but dismissing Nature and the ecosystem services it provides to sustain society -and the economy- seems just foolish 😔 www.nationalobserver.com/2026/09/10/n...
nationalobserver.com
Feds quietly exempt oilsands and gas power plants from environmental impact assessments
The change comes as part of a suite of amendments to Canada's impact assessment laws passed by the Carney government early Wednesday morning.
010
Reposted by Mariano Koen-Alonso (He/Him)
Katharine Hayhoe @katharinehayhoe.com · 05/09/2026
Listening to a man at the farmers market explain he’s out of eggs as “the ladies aren’t producing due to heat stress”— and another poultry vendor says he’s out, as he can’t keep them in this heat. Climate change is all around. We just have to open our eyes to see how it’s affecting our daily lives.
static.klipy.com
Sleepy Cartoon Chicken
Alt: Sleepy Cartoon Chicken
19824259
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 04/09/2026
🤣🤣🤣
001
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 04/09/2026
🤣🤣🤣
030
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 04/09/2026
While Canadian gov decisions appear intended to make this report a self fulfilling prophecy, "This report describes physics, not fate", "We do still have some agency” are also key messages from the report; there are things we can do to mitigate some of the harm to come… www.cbc.ca/news/politic...
cbc.ca
Canadians should prepare for a 5 C hotter future, report warns | CBC News
The federal government's new report summarizing the latest science on climate change warns that under current climate policies, the impact on Canadians will likely be "far from benign."
011
Reposted by Mariano Koen-Alonso (He/Him)
Katharine Hayhoe @katharinehayhoe.com · 04/09/2026
Talking extreme weather and climate change on @npr.org with @billweircnn.bsky.social for the next hour. Tune in here! www.listentothemiddle.com
listentothemiddle.com
The Middle with Jeremy Hobson
The Middle with Jeremy Hobson is the only live national call-in current events program on public radio.
27112
Reposted by Mariano Koen-Alonso (He/Him)
Dr. Aaron Thierry @thierryaaron.bsky.social · 04/09/2026
You know what happens when a plane 'overshoots' a runway. It doesn't just 'return'.
Aerial view of an American Airlines Boeing 737 that overshot the runway, lying wrecked on rocky ground beyond the airport perimeter, fuselage split open and wings buckled, with emergency workers nearby.
05518
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 04/09/2026
A rational evaluation of the risks would immediately trigger a slow down & setup of strong regulatory frameworks for AI development. Like climate change, the lack of decisive action indicates that greed & a FOMO race for power drive decisions. Maybe is just stupidity. www.cbc.ca/news/world/o...
cbc.ca
Hugging Face hack raises fears of more rogue AI swarms as tech companies sound alarm in open letter | CBC News
Tech experts are warning of dire consequences if AI systems continue to escape human control, after a group of OpenAI agents went rogue in July and hacked into a billion-dollar company — what some are...
010
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 03/09/2026
Now the name of the game is managing climate overshoot. What a mess we are leaving to our kids and everyone that will come after us… www.cbc.ca/news/science...
cbc.ca
For the first time, a key UN report says the 1.5 C global warming threshold is lost | CBC News
In a strategic retreat in the fight against climate change, the United Nations has acknowledged that Earth has lost its chance to prevent some of the worst of global warming's harms. Officials say the...
010
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 03/09/2026
Really interesting piece on taxation, the fallacies around simplistic political promises on lowering taxes, and the importance of taxes to reduce the wealth gap. 👇👇 www.cbc.ca/news/canada/...
cbc.ca
ANALYSIS | Is Quebec actually the most taxed jurisdiction in North America? | CBC News
With the rising cost of living front and centre in the Quebec election campaign, a familiar refrain has emerged: Quebec is the most taxed jurisdiction in North America. But is the claim actually true?...
000
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 02/09/2026
While the pipeline conversation in Canada is driven by politics, analyses like this indicate that the business case for a new pipeline to the BC coast is not quite there. If we are going to pour billions in public funding, other major projects may be a better bet... www.thestar.com/politics/fed...
thestar.com
Does Canada really need Alberta’s new $43-billion pipeline? This analysis says it’s a massive risk
A global energy think tank suggests a global energy transition away from oil is likely to drive down prices and undermine the West Coast pipeline idea.
000
Reposted by Mariano Koen-Alonso (He/Him)
Mark Ruffalo @markruffalo.bsky.social · 22/08/2026
300177893391
Reposted by Mariano Koen-Alonso (He/Him)
Michelle says: Be kind. Always. ❤️ @snarkysillysad.bsky.social · 23/08/2026
Art and light: #AGoodPlace Source: www.reddit.com/r/oddlysatis...
924731618
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 23/08/2026
In the middle of all the turmoil, I want to thank Ainsley Hawthorn for her historical pieces, and to a mainstream news outlet like CBC for giving them space. I always learn something from them, and are a refreshing reminder that there is more out there that doomscrolling. www.cbc.ca/news/canada/...
cbc.ca
Why do Canadians call the last letter of the alphabet zed? | CBC News
Few things distinguish us from our neighbours to the south more quickly than calling the last letter of the alphabet zed instead of zee, but why do we do it?
021
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 21/08/2026
What @katharinehayhoe.com said 👇👇👇
000
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 20/08/2026
👇👇👇 www.thestar.com/opinion/cont...
thestar.com
Linda McQuaig: How Carney can force tech billionaires to finance the renewable energy revolution
Requiring AI data centres to use renewable energy could help the transition to renewables — a transition every sensible person knows is necessary to save the planet.
043
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 17/08/2026
A good reminder that it can take far longer than we think to restore full ecological functionality & diversity to an ecosystem. Something to keep in mind nowadays where longer term consequences are typically ignored by decision-makers pursuing short term economic gains. www.cbc.ca/news/science...
cbc.ca
When we bring back forests and wetlands, some tinier species may be missing | CBC News
A regrown forest can look tall, lush and green. Restored wetlands can buzz with insects and flutter with birds. But scientists looking more closely are finding that some of their smallest inhabitants ...
031
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 14/08/2026
👇👇👇
054
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 13/08/2026
Objectively, this is good new. Still, CAD 34 millions pales in comparison with the billions in federal funding that will be used to prop up the building of another pipeline which, also objectively, will make climate change worse. The dissonance here is deafening. www.thestar.com/politics/fed...
thestar.com
Federal government announces $34M to help communities cope with climate change
In all, 128 communities across Canada will receive funding for various climate resilience projects.
000
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 11/08/2026
Worth a read 👇 thewalrus.ca/carney-endor...
thewalrus.ca
Mark Carney Thinks Canada Has Bigger Problems than Climate Change | The Walrus
The prime minister has concluded pipelines matter more than cutting emissions
011
Reposted by Mariano Koen-Alonso (He/Him)
Dr. Aaron Thierry @thierryaaron.bsky.social · 10/08/2026
European summers aren't what they used to be! Grey curve is the climate of 1950-90. Every coloured line is a summer since 1991. Every one since 2005 sits beyond the 95th percentile of the curve. This isn't a shifting #climate. It's already a new one! 🤯🥵 Plot inspired by Barriopedro et al. 2011
Distribution of European summer temperature anomalies, June to August, over 25°W-40°E, 35-70°N, land only, the region used by Barriopedro et al., relative to 1961-1990, from ERA5. Grey bars show the 41 summers from 1950 to 1990, with a normal curve fitted through them, centred near zero. Coloured vertical lines show every summer from 1991 to 2025, shaded yellow through dark red by year, and almost all of them fall to the right of the grey distribution. The ten warmest are labelled, with 2024 furthest right at 2.74°C and 2022 next at 2.54°C. A dotted line marks the 95th percentile of the 1950-1990 distribution at 0.76°C.

Both run long, which is fine, since alt text has no practical limit and screen reader users benefit from the detail.
4228146
Reposted by Mariano Koen-Alonso (He/Him)
Dr. Aaron Thierry @thierryaaron.bsky.social · 10/08/2026
2003 was once exceptional. Now it's average. 2024's record will be average by the mid-2040s. The extreme summers of the 2040s don't bear thinking about! 🌡🥵😬 #ClimateEmergency After @edhawkins.org & @stottpeter.bsky.social using ERA5 + CMIP6.
European summer temperature, June to August, over 10°W-40°E, 30-50°N, the region Stott et al. used for the 2003 heatwave, relative to 1961-1990. The black line shows ERA5 observations from 1950 to 2025, rising from about zero in the mid-twentieth century to 2.75°C in 2024. Grey shading is the 5-95% range of 34 CMIP6 models over the historical period, blue shading the same models under SSP2-4.5 to 2100, with the running median in white. Two dotted lines mark the 2003 summer at 2.06°C and the 2024 summer at 2.75°C, each dropping to the year the model median reaches that level: 2027 and 2045. Model region approximated by the IPCC AR6 Mediterranean and West & Central Europe regions, weighted 0.75 to 0.25.
17371213
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 09/08/2026
As wildfires force thousands out of their homes, and Canada bets on more fossil fuels to deal with the trade war, not only are people’s health, Nature conservation, & sustainability being dismissed… it seems the rule of law is also a drag to be skipped over… sad times www.thestar.com/politics/pol...
thestar.com
Althia Raj: Mark Carney’s Building Canada Act is a threat to the rule of law, and here’s a good example
The "national interest" legislation should be revoked rather than utilized, Althia Raj writes.
070
Reposted by Mariano Koen-Alonso (He/Him)
David Ho @davidho.bsky.social · 08/08/2026
The process by which atmospheric CO₂ is taken up by the ocean is studied by only a handful of people worldwide. I talk about that important process in this podcast. 🌊
podcasts.apple.com
Carbon I - air-sea CO2 exchange - David Ho
Podcast Episode · Marine Biogeochemistry Podcast · August 6 · 37m
532666
Reposted by Mariano Koen-Alonso (He/Him)
Dr. Aaron Thierry @thierryaaron.bsky.social · 08/08/2026
"What I do know for certain is that failing to talk about #climate change [cedes] to those who would deny its existence, or deny that action must be taken... It is to abdicate our responsibility to prevent the worst versions of the future for which we may be on track, but which can yet be avoided"
newstatesman.com
“Don’t say climate change”
France, Spain and England are burning. Where is the climate movement to resist this catastrophe?
29442
Reposted by Mariano Koen-Alonso (He/Him)
Dr. Aaron Thierry @thierryaaron.bsky.social · 27/07/2026
Quiet Alarm - A Review of CBC's #Climate Reporting www.sfu.ca/ceri/publica... #EndClimateSilence
21813
Reposted by Mariano Koen-Alonso (He/Him)
Dr. Aaron Thierry @thierryaaron.bsky.social · 27/07/2026
"The big tipping point was 2002. In that yr, & every yr since, Canada’s managed forest has lost C to the atmosphere. That’s 22 straight yrs of annual CO2 emissions. This clearly isn’t a problem caused by a few freak yrs. It’s an every-yr crisis & the crisis is accelerating" -@bsaxifrage.bsky.social
source:


https://www.nationalobserver.com/2025/09/03/analysis/canada-wildfire-crisis-emissions
47646
Reposted by Mariano Koen-Alonso (He/Him)
Dr. Jeroen W.P. Wijnendaele @drdragases.bsky.social · 27/07/2026
Good grief, this hits home.
324138034877
Reposted by Mariano Koen-Alonso (He/Him)
Aaron Sojourner @aaronsojourner.org · 25/07/2026
Admirable clarity @science.org
The Trump administration hates academic science funding, full stop. They hate where that money goes, and they hate who it goes to. They want to keep all that money for themselves, to hand out to favored cronies who can help them get elected and to steer yet more money and more power back into their hands.

That’s it. That’s the story
4974912713
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 23/07/2026
This is a “burning” example, but there are many others. This is about gov’s priorities & it’s the gov’s job to make these choices. Still, the fed gov should explain Canadians why these were the right policy choices without gaslighting people, or the dissonances will keep growing. I’m listening…
062
Reposted by Mariano Koen-Alonso (He/Him)
Katharine Hayhoe @katharinehayhoe.com · 18/07/2026
Let's do some Canadian pipeline-wildfire math. The Canadian Energy Center says growing oil exports by 1.5M barrels/day **could** boost GDP by ~31B annually. Meanwhile, wildfire smoke health costs alone - just the health costs, nothing else - averaged 23B/year, past tense. And they're growing fast.
nowtoronto.com
Ontario hardest hit as wildfires cost Canada billions | NOW Toronto
A new report estimates wildfire smoke has cost Canada $231 billion since 2014. See how much each province has spent.
20582296
Reposted by Mariano Koen-Alonso (He/Him)
David Ho @davidho.bsky.social · 17/07/2026
A reminder: The US, by being the largest historical CO₂ emitter, has caused $10 trillion in global climate damage since 1990. A quarter of this impact is felt domestically, but it disproportionately affects poorer countries.
theguardian.com
US has caused $10tn worth of climate damage since 1990, research finds
US, top carbon emitter in history, has ‘a lot of responsibility’ for causing ‘substantial’ harm globally, scientist says
13626346
Reposted by Mariano Koen-Alonso (He/Him)
Katharine Hayhoe @katharinehayhoe.com · 17/07/2026
I am a climate scientist and, same.
341978424
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 18/07/2026
Shocking. Stopping the source of the problem that otherwise will keep making forest fires & air quality worse going forward appears to a be the solution. Who could have thought that? I’m sure no science advisor ever brought this up to top bureaucrats & politicians… www.cbc.ca/news/science...
cbc.ca
'Just stop burning fossil fuels.' Scientists stress that our smoky skies only have one true fix | CBC News
Smoky skies in Toronto have led to new scrutiny of government efforts to fight fires and manage forests. But scientists say the realistic way to tackle the smoke is fighting climate change itself.
042
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 13/07/2026
A great scientist, true mentor, fierce friend, and lovely person all around. He will be sorely missed, but his legacy will live on through the many he touched along the way. Until we meet again Bill..💔😢 www.cbc.ca/news/canada/...
cbc.ca
World-renowned seabird biologist Bill Montevecchi has died | CBC News
Seabird biology and Memorial University professor emeritus Bill Montevecchi died over the weekend.
021
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 07/07/2026
I have yet to listen to the podcast, but 100% this is the discussion we need to have. 👇👇👇
010
Reposted by Mariano Koen-Alonso (He/Him)
Miren Gurutxe 🌹🌹🌹 🇵🇸 @mirentxu255.bsky.social · 04/07/2026
15864233
Reposted by Mariano Koen-Alonso (He/Him)
Dr. Aaron Thierry @thierryaaron.bsky.social · 03/07/2026
"As the public overestimate the costs of net zero by up to 14,000%, the idea that decarbonisation is an unaffordable luxury needs to be put to bed. It is an unavoidable investment in a safer future and it would be cheap at any price." - @charliejgardner.bsky.social
theguardian.com
A bargain price for reaching net zero in Britain | Letters
Letters: Dr Charlie Gardner says the public are vastly overestimating the cost of net zero. Plus letters from Moira Gommon and Diana Francis
22517
Reposted by Mariano Koen-Alonso (He/Him)
Katharine Hayhoe @katharinehayhoe.com · 03/07/2026
Climate change is literally canceling US independence Day celebrations. The July 4 parade in Philadelphia, the birthplace of American independence, has been canceled due to extreme heat. Heat waves aren’t new - what’s new is that climate change is making them hotter and more dangerous.
cbsnews.com
Philadelphia cancels 4th of July parade due to extreme heat, organizers say
Philadelphia's Salute to Independence parade has been canceled due to extreme heat in the weather forecast.
411559601
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 01/07/2026
I really like @thierryaaron.bsky.social’s observation here; not only because it’s witty, but because it highlights that this attitude makes climate change a self-fulfilling prophecy. It fuels the feedback loops that makes it worse… & don’t even ask who is financing & benefiting from this narrative…
020
Reposted by Mariano Koen-Alonso (He/Him)
Dr. Aaron Thierry @thierryaaron.bsky.social · 01/07/2026
You don't hear politicians arguing that there's no point in casting ballots because you're just one vote! Why do they apply that faulty logic when it comes to national carbon emissions?
617450
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 27/06/2026
Two rather incompatible takes about last cuts at Fisheries and Oceans Canada (DFO): Professional Institute of the Public Service of Canada: pipsc.ca/press-releas... Minister's response: vocm.com/2026/06/26/3... Perspective is everything, but one of this must be closer to the facts than the other
pipsc.ca
Press Release: Government cuts programs it recently pledged to strengthen - PIPSC | IPFPC
Ottawa (ONTARIO), June 24, 2026 – The Professional Institute of the Public Service of Canada (PIPSC) is sounding the alarm over another round of cuts at the
101
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 22/06/2026
I can understand that today’s geopolitical and affordability crises are real issues that we must pay attention to, but solving those without tackling climate change seriously and fast (i.e. right now) strikes me as a penny wise, pound fool approach…. www.cbc.ca/news/canada/...
cbc.ca
Why scientists are concerned about the AMOC, and how it could impact the East Coast | CBC News
New research shows that the important AMOC is already slowing down and bringing it closer to a tipping point and eventual shutdown. The impacts would be significant for Atlantic Canada and the planet.
021
Mariano Koen-Alonso (He/Him) @mkoenalonso.bsky.social · 20/06/2026
Clear straight talk from scientific experts on the risks of geoengineering. Really worth a read. The challenge is that robust evidence-based decisions are a declining practice. Special interest lobbies, & their siren songs of quick fixes/high political returns, increasingly drive policy decisions.
0185