Robert Lepage, PhD., P.Eng.
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rtmlepage.bsky.social
Robert Lepage, PhD., P.Eng.
@rtmlepage.bsky.social
1.6K followers 570 following 2.6K posts
Building Science Engineer + Climate Resilience Geek.
Of the 347ppm generation. He/him.
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rtmlepage.bsky.social
Robert Lepage, PhD., P.Eng. @rtmlepage.bsky.social · Feb 14
Ah, ça ira!
Reposted by Robert Lepage, PhD., P.Eng.
thenarwhal.ca
The prime minister promises he’ll solve climate change … right after he gets a new pipeline built. @balkissoon.bsky.social asks: haven’t we heard that one before?
November 29, 2025 at 5:52 PM
Reposted by Robert Lepage, PhD., P.Eng.
globalecoguy.bsky.social
<< Taps the sign.. >>

Blocking the sun as a means to combat greenhouse warming is a really bad idea on multiple fronts…

globalecoguy.org/solar-geoeng...
globalecoguy.org
November 28, 2025 at 8:50 PM
Reposted by Robert Lepage, PhD., P.Eng.
jflevin.bsky.social
The federal-AB agreement is a love letter to fossil fuels

-cancelation of critical policies (OG emissions cap & clean electricity rules)
-public $$ for a pipeline (via Indigenous loan program)
-more $$ for CCS, incl. enhanced oil production
- only mention of electricity is for fossil fuels
November 27, 2025 at 5:41 PM
Reposted by Robert Lepage, PhD., P.Eng.
jameswsthomson.com
Sorry did I say six months? I meant 33 minutes
November 28, 2025 at 1:44 AM
Reposted by Robert Lepage, PhD., P.Eng.
shastingssimon.bsky.social
Another night to sleep on this and I'm solidifying this take

There is a reason industry/govt sees a bit win in trading the regulations that would have forced real emissions reductions (oil and gas cap and CER) for vauge future carbon pricing promises that some are claiming will achieve the same 1/
shastingssimon.bsky.social Sara Hastings-Simon 🇨🇦 @shastingssimon.bsky.social · 2d
After some time for reflection I think this is one of the biggest open questions that has a big impact on how much climate action we will see in Canada -
unless I'm reading this wrong (?) it doesn't say the carbon floor will be $130 by April. It says there will be an agreement by April 1/
shastingssimon.bsky.social Sara Hastings-Simon 🇨🇦 @shastingssimon.bsky.social · 2d
Where does it say $130 in April? it says they will by April agree on what the timeline and price increases are.
I would bet a very large sum of money it will not be $130 effective price in April.
November 28, 2025 at 4:17 PM
Reposted by Robert Lepage, PhD., P.Eng.
climateinstitute.bsky.social
Today’s MOU between the federal government and Alberta risks unravelling Canada’s climate policy. Read our full statement ⬇️
climateinstitute.ca/news/mou-alb...
Federal-Alberta MOU risks unravelling Canada’s climate policy
While promised improvements to industrial carbon pricing are positive and important, other aspects of Alberta-Canada MOU will undermine policy effectiveness across the country.
climateinstitute.ca
November 27, 2025 at 7:05 PM
Reposted by Robert Lepage, PhD., P.Eng.
stevenguilbeault.bsky.social
This afternoon, I informed the Prime Minister of my decision to resign as Minister of Canadian Identity and Culture, Minister responsible for Official Languages, Minister of Nature and Parks Canada, as well as his Lieutenant in Quebec.

You can find my full statement below.
November 27, 2025 at 10:32 PM
Reposted by Robert Lepage, PhD., P.Eng.
rachelgilmore.bsky.social
Trudeau-era environment minister Steven Guilbeault has published a resignation letter detailing the reasons for his departure from Carney's cabinet.

He directly cites today's MOU:
Statement by Steven Guilbeault This afternoon, it is with great sadness that I submitted my resignation to the Prime Minister as Minister of Canadian Identity and Culture and Minister responsible for Official Languages, Minister of Nature and Parks Canada, as well as his Lieutenant in Quebec. As you know, I chose to enter politics to champion the fight against climate change and the protection of the environment. Over the past ten years, our country has made historic progress in reducing climate pollution, protecting nature and the environment, while our economy continued to grow. I believe I have contributed to these advancements, and I remain deeply proud of the achievements I have helped bring forward: • Standing up to tech giants and major polluters • Implementing Canada's first emissions reduction plan, slowing their growth and placing them on a downward trajectory • Establishing the National Day for Truth and Reconciliation • Modernizing the Canadian Environmental Protection Act • Developing the country's first national climate adaptation strategy to protect our communities • Eliminating harmful single-use plastics • Implementing the most ambitious nature conservation plan in the country's history • Continuing the modernization of the Official Languages Act • Making historic investments in arts and culture, including during the COVID-19 crisis and in the most recent budget Changes in our relationship with the United States have led to profound disruptions affecting the global order, diplomatic relations, and the economy. I understand and share the Prime Minister's efforts to ensure our country First, there was no consultation with the Indigenous nations of the West Coast of British Columbia or with the provincial government, who would be greatly affected by this agreement. Furthermore, a pipeline to the West Coast would have major environmental impacts, particularly as it could cross the Great Bear Rainforest, contribute to a significant increase in climate pollution, and move Canada further away from its greenhouse gas reduction targets. Lifting the tanker ban on the West Coast would also significantly increase the risk of accidents in the region. This moratorium was established in 1972 following a unanimous vote in the House of Commons, notably because navigation in the Hecate Strait is highly dangerous. Its removal would also hinder the creation of a marine conservation area in the Great Bear Sea, a project our government has been actively developing with Indigenous partners and the government of British Columbia for several years, protecting more than 100,000 km of this ecologically sensitive region. We cannot hope to decarbonize our economy without decarbonizing the electricity sector. The proposal to exempt Alberta from the Clean Electricity Regulations in exchange for stricter industrial carbon pricing rules and the Pathways project is, in my view, a serious mistake. As shown in the analysis submitted to the House of Commons, without this regulation, the electricity sector-which has halved its pollution over the past 20 years-would return to an upward emissions trajectory. This regulation also saves lives by reducing air pollution, generates over $3 billion in healthcare savings, and ultimately reduces greenhouse gas emissions by 182 million tonnes. Finally, over the past few months, several elements of the climate action plan I worked on as Minister of the Environment have been, or are about to be, dismantled: the consumer carbon pricing, the Zero Emission Vehicle standard, the oil and gas sector emissions cap, the framework to eliminate fossil fuel subsidies, and the Clean Electricity Regulations. In my view, these measures remain essential to our climate action plan. I want to express my sincere gratitude to the citizens of Laurier-Sainte-Marie for the trust they have placed in me since 2019. I will continue to represent them as their Liberal Member of Parliament with dedication. I also thank the Prime Minister for the honor of serving in his cabinet and as his lieutenant in Quebec. When I entered politics, it was because I had a deep conviction that I could make a difference in fighting climate change and protecting our environment. My commitment to leaving a better world for the future of our children and our planet remains unchanged. Steven Guilbeault Member of Parliament for Laurier-Sainte-Marie
November 27, 2025 at 9:55 PM
Reposted by Robert Lepage, PhD., P.Eng.
jonathanjarry.bsky.social
CAR-T therapies are looking more and more promising as a way to treat--and maybe, MAYBE even cure--many autoimmune diseases.

Some of your immune cells are modified in the lab and put back in your body to make important molecules.

🤞

www.nature.com/articles/d41...
‘They don’t have symptoms’: CAR-T therapies send autoimmune diseases into remission
Engineered T cells that have been used to treat ulcerative colitis, rheumatoid arthritis and lupus show promising results.
www.nature.com
November 27, 2025 at 9:25 PM
rtmlepage.bsky.social
@mark-carney.bsky.social, SSP5 is a cautionary storyline of extreme disasters, not a "optimal cost-benefit analysis" condition that should be pursued.

www.ctvnews.ca/politics/art...
Guilbeault resigning from Carney’s cabinet on same day PM signs Alberta pipeline MOU
Canadian Identity and Culture Minister and former environment minister Steven Guilbeault is resigning from Prime Minister Mark Carney’s cabinet, according to a senior government source.
www.ctvnews.ca
November 27, 2025 at 9:47 PM
Reposted by Robert Lepage, PhD., P.Eng.
aarnegranlund.bsky.social
"ETH researchers estimate the cost of removing 1 tonne of CO2 from the air in the year 2050 to be between 230 and 540 US dollars. This is twice as high as previous estimates."

This technology is assumed in the growth models because we cannot 'decouple' fast enough.

ethz.ch/en/news-and-...
Cost of direct air carbon capture to remain higher than hoped
The cost of removing large quantities of CO2 from the air will fall in the medium term, but not as much as previously hoped. This is the conclusion reached by ETH researchers on the basis of new calcu...
ethz.ch
November 27, 2025 at 7:42 AM
Reposted by Robert Lepage, PhD., P.Eng.
rachelgilmore.bsky.social
A bunch of white nationalists donned their little costumes, stood on a London, Ontario overpass and demanded to be taken seriously.

Of course, this was Second Sons Canada, Diagolon's more militant arm.

I spoke with extremism experts about what they hope to accomplish with these temper tantrums:
November 26, 2025 at 10:27 PM
Reposted by Robert Lepage, PhD., P.Eng.
davidho.bsky.social
Our built environment isn't ready for the changes we've made to our natural environment.
en.afp.com AFP News Agency @en.afp.com · 3d
VIDEO: 🇹🇭 🇲🇾 Tens of thousands displaced by floods in Thailand and Malaysia

Tens of thousands of people in Thailand and neighbouring Malaysia have been displaced by widespread flooding, with streets submerged, homes inundated and at least 34 people dead, officials said
November 26, 2025 at 4:36 PM
Reposted by Robert Lepage, PhD., P.Eng.
mark-ungrin.bsky.social
There is no such thing as an intelligent report on increasing school absences due to chronic illness and mental health issues that does not lead with a discussion of the out-of-control virus that causes chronic illness and mental health issues.

@cbcnews.ca has seriously weird biases about COVID. 🙄
November 23, 2025 at 6:49 AM
Reposted by Robert Lepage, PhD., P.Eng.
tabathasouthey.bsky.social
Massive shoutout out to whoever handles the Royal Canadian Air Force’s social media account. They responded to every single comment on their already very solid Trans Day of Remembrance post and they responded like this…
A screenshot of a Facebook post where a person named Andy ask the Well now “What the hell is transgender?” The Royal Canadian Air Force account response with “That’s a pretty big question asked in a pretty small way, Andy. ‘Transgender’ putting describes someone whose gender – who they know themselves to be – doesn’t match the sex they were assigned at birth. It’s not new, and it’s certainly not a fad. People have lived this experience for as long as people have existed; we’re just finally talking about it openly. You don’t have to fully understand it right away, most learning takes time, but we can always start from a place of respect. That’s how decent folks handle things they’re still getting used to.”
November 22, 2025 at 1:03 AM
Reposted by Robert Lepage, PhD., P.Eng.
hollyhoye.bsky.social
Ahahahaha 🤣 Elizabeth May explaining the tanker ban “especially to the attention of slow learners; Andrew Sheer, Danielle Smith, take note.”
November 22, 2025 at 12:04 AM
rtmlepage.bsky.social
Did anything happen 5 years ago that could lead to a dramatic rise in illness?

Or is it that kids these days don't have enough of a stiff upper lip?

www.cbc.ca/news/canada/...
Kids are missing more school. Experts say mental health is a factor | CBC News
A CBC investigation finds that school time lost due to reported illness is up in all districts that provided data — more than tripling in some places compared to five years ago. While the data doesn’t...
www.cbc.ca
November 22, 2025 at 1:36 PM
Reposted by Robert Lepage, PhD., P.Eng.
trishgreenhalgh.bsky.social
Hypothesis: Lockdown could have been avoided if there’d been an early mask mandate.
November 20, 2025 at 8:44 PM
Reposted by Robert Lepage, PhD., P.Eng.
legorafi.bsky.social
La COP 30 se conclut en beauté avec un spectacle de Monster Trucks https://www.legorafi.fr/?p=49389
La COP 30 se conclut en beauté avec un spectacle de Monster Trucks
Toute l'information selon des sources contradictoires.
www.legorafi.fr
November 21, 2025 at 3:08 PM
Reposted by Robert Lepage, PhD., P.Eng.
erictopol.bsky.social
Why is immune escape such a problem with SARS-CoV-2?
Analysis of >1,000 antibodies to the spike protein to help design a workaround plan
www.cell.com/cell-systems...
One thousand SARS-CoV-2 antibody structures reveal convergent binding and near-universal immune escape
Feng et al. analyze over 1,100 SARS-CoV-2 antibody structures, including all 13 clinical monoclonals, mapping 99% of the receptor-binding domain surface. Their study reveals convergent paratope archit...
www.cell.com
November 21, 2025 at 4:46 PM
Reposted by Robert Lepage, PhD., P.Eng.
bromptonymous.ca
Reminder that no insurance means ... no mortgage. No mortgages, and ... well you can imagine what that does for housing/business/economy in general. Insurance will be the climate shock that breaks things, probably. 💣💥
kostyack.bsky.social John Kostyack @kostyack.bsky.social · 9d
"Climate shock." New study shows that rising property insurance premiums caused by growing weather extremes are cascading into the real estate market. Homes in the ZIP codes most exposed to hurricanes and wildfires would sell for an average of $43,900 less than they would otherwise.
Increases in average annual premiums in seven key states.
November 20, 2025 at 11:19 PM
Reposted by Robert Lepage, PhD., P.Eng.
gmbutts.bsky.social
New from me, Rick Smith, and Peter Nicholson.

“Our policy advice is pretty simple: Clean up electricity and electrify everything possible. This is the nation-building project Canada needs…”

www.thestar.com/opinion/cont...
New data shows the world is embracing renewable energy. Canada can’t follow Trump’s fossil fuel obsession
North America at risk of becoming an island of fossil fuels in an electrifying world. Canada should take note and choose a better path.
www.thestar.com
November 20, 2025 at 12:47 PM
Reposted by Robert Lepage, PhD., P.Eng.
trishgreenhalgh.bsky.social
Eat out to Help Out was killing people, but they “kept it out of the news”.
November 20, 2025 at 6:53 AM
rtmlepage.bsky.social
Billionaires are so rich because they are more intelligent and better than the rest of us.

Also...
olivia.science Olivia Guest · Ολίβια Γκεστ @olivia.science · 10d
I laughed at loud. These people are so pathetic; our enemies are numbskulls. They will kill us all and still not know hs physics.

COWEN: The stupidest question possible: Why don’t we just make more GPUs?

ALTMAN: Because we need to make more electrons.

conversationswithtyler.com/episodes/sam...
COWEN: The stupidest question possible: Why don’t we just make more GPUs? ALTMAN: Because we need to make more electrons. COWEN: What’s stopping that? What’s the ultimate binding constraint? ALTMAN: We’re working on it really hard. COWEN: If you could have more of one thing to have more compute, what would the one thing be? ALTMAN: Electrons.
November 19, 2025 at 4:39 PM
Reposted by Robert Lepage, PhD., P.Eng.
chrisbaraniuk.com
NEW from me: A recent study finds that fully electrified homes in Handsworth, built to adhere to a draft version of the Future Homes standard, put less pressure on the grid than researchers expected.

www.theguardian.com/environment/...
Heat-pump homes put less strain on grid than expected, study shows
Analysis of new-builds in Birmingham suggests all-electric homes not only use less energy but vary in peak usage
www.theguardian.com
November 19, 2025 at 9:14 AM