Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 11/10/2026View from the Southern Shores of the St Lawrence 1408
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 08/10/2026Wrote something for the locals. What is the Super El Niño likely to bring to Gatineau Hills, based on local weather data from the last very strong El Niños? Available at: thetradeoff.substack.com/p/the-super-... 163
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 06/10/2026👀 Don't ask me why but I've gone down a crazy rabbit hole to find out why pure vanilla extract is so expensive, and came across this wild passage. Turns out growers have *ONE DAY* to *HAND POLLINATE* vanilla orchid flowers in order for them to produce the bean pods! 2254
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 01/10/2026Our era today is... beset with macroeconomic instability... crumbling political settlements across the Global North, growing inequality, ...unbridled speculation in AI, trade wars, actual wars and—sadly all too often forgotten in economic discussions—ecological and climate breakdown. 1177
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 29/09/2026Nice to see this book in print! (I wrote the ‘Canada chapter’). We’re holding a mini-launch during a Zoom Webinar tomorrow (Sep 30th). Sign-up here: www.cips-cepi.ca/event/the-in... 1172
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 18/09/2026Study by World Weather Attribution finds that “Rapid Warming in the Himalaya Exacerbates Geohazard Cascades Beyond Adaptation Limits” Link: www.worldweatherattribution.org/rapid-warmin... 1117
Reposted by Ryan Katz-Rosene, PhDCIPS / CÉPI @cepi-cips.bsky.social · 08/09/2026🚄 Canada recently announced plans to build Alto, a high-speed rail line connecting Toronto to Quebec City, and cities in between. ❓What does Canada have to learn from other national experiences with high-speed rail abroad? Join us September 30 💻 >>> www.cips-cepi.ca/event/the-in... 154
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 03/09/2026Fellow profs (or students of environment): Don't forget the full Season 4 of the Ecopolitics Podcast is now available! Assign for class 'listenings': www.ecopoliticspodcast.ca/season-4/ecopoliticspodcast.caSeason 4 | The Ecopolitics Podcast 040
Reposted by Ryan Katz-Rosene, PhDNoella Gray @noellagray.bsky.social · 02/09/2026Updating my Environmental Governance syllabus with some new episodes of the EcoPolitics podcast and just want to thank @ryankatzrosene.bsky.social and Peter Andrée for producing this excellent resource! 111
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 02/09/2026I've organized an event that may be of interest to anyone curious about the Alto high-speed rail project: What can we learn from other countries' experiences with high-speed rail development? www.cips-cepi.ca/event/the-in...cips-cepi.caThe International Political Economy of High-Speed Rail: Lessons for Canada from Abroad – Centre for International Policy StudiesCanada's leading centre for analysis and debate of international affairs. 0104
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 26/08/2026My cross-appointed department is hiring a tenure track Assistant Professor in Urban Sustainability. Check it out and apply if that's you! uottawa.wd3.myworkdayjobs.com/uOttawa_Exte...uottawa.wd3.myworkdayjobs.comAssistant professor - Urban SustainabilityPosting Reason: New Position Job Family: Academic Leadership and Faculty Union affiliation: APUO Faculty/Department: Department of Geography, Environment and Geomatics_Professors and Researchers Campu... 076
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 23/08/2026And we have a new all-time record warm *absolute* temperature for the oceans, according to ERA5 (which goes back to 1940): August 21st likely marked the warmest Sea Surface Temperatures have been for the entire Holocene period. Should be major news! 9515311
Reposted by Ryan Katz-Rosene, PhDThe Narwhal @thenarwhal.ca · 21/08/2026Why is everything so expensive these days? According to these two researchers, one of the biggest culprits is climate change. They call it "climateflation." Originally published by @ca.theconversation.com.thenarwhal.caHere’s how climate change makes inflation worse | The NarwhalThese researchers are tracking how climate change is making life more expensive 56435
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 19/08/2026No matter how you slice it, Canada's wildfires seem to be getting worse: 1) Annual burn area: Trending up 2) Wildfire and Post-Wildfire Emissions and Withdrawals: Trending up 3) Average fire size: Trending up 4) Share of total forest area burned: Trending up 44021
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 18/08/2026Tonight’s aurora has a bit of blue in it, if you look closely. 0244
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 14/08/2026According to a 2023 paper in Science, "El Niño persistently reduces country-level economic growth..." with $4.1 trillion and $5.7 trillion in global income losses attributed to the 1982–83 and 1997–98 El Niño events, respectively. 0164
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 12/08/2026It's almost as if each Super El Niño is warmer than the last? 🧐 66029
Reposted by Ryan Katz-Rosene, PhDJames Jackson @james7jackson.bsky.social · 12/08/2026🗞️ New article out in The Conversation - building on our recent article in Globalization, @ryankatzrosene.bsky.social Katz-Rosene and I further explore the ongoing issue of climateflation - theconversation.com/as-the-clima... The original article is here - www.tandfonline.com/doi/full/10....theconversation.comAs the climate breaks down, costs go up: Welcome to ‘climateflation’Fossil-fuel dependence, the costs of adapting to a changing climate and the transition to cleaner energy are all driving up costs. 1154
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 12/08/2026OK this one I find TRULY REMARKABLE. If you look at Year-to-date Fire Radiative Power in Canada (the heat energy given off by wildfires from beginning of year to present), the TOP 4 worst fire years in this data set are: 1) 2023 2) 2025 3) 2024 4) 2026 😯 0247
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 11/08/2026Interesting question came up at the other place about how the surface “cooling” effects of wildfire smoke compare to the radiative “warming” power of fires themselves. Any thoughts on this or suggestions of literature that discusses? 221
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 11/08/2026Welcome to the era of Climateflation: theconversation.com/as-the-clima...theconversation.comAs the climate breaks down, costs go up: Welcome to ‘climateflation’Fossil-fuel dependence, the costs of adapting to a changing climate and the transition to cleaner energy are all driving up costs. 0218
Reposted by Ryan Katz-Rosene, PhDRyan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 03/08/2026Climate Change is making wildfires worse, but global wildfire burn area is declining. So what does the future hold in store? My latest post at The Trade-Off: open.substack.com/pub/thetrade... 2165
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 06/08/2026(To be clear I didn’t write that article, just posted it) 010
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 03/08/2026Climate Change is making wildfires worse, but global wildfire burn area is declining. So what does the future hold in store? My latest post at The Trade-Off: open.substack.com/pub/thetrade... 2165
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 28/07/2026A scene from Adam McKay’s forthcoming Mockumentary “Don’t Breathe In”: 191
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 27/07/2026Because everyone works indoors sitting at a computer 🙄 010
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 27/07/2026More evidence of Climateflation: This briefing note from researchers at LSE found that last month's heat wave in the UK cost the domestic economy more than £1 billion in lost output due to its effects on worker productivity: www.lse.ac.uk/granthaminst... 12011
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 25/07/2026I think this passed under the radar (pun intended), but the world may have just recorded an all-time record in Commercial Flights (I think): 153,359 FLIGHTS! Yesterday alone! 3189
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 24/07/2026Seems like we oughta talk about average fire size per year in Canada... 25623
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 24/07/2026Every world region has warmed since the mid-20th Century. The Arctic and Europe seems to be warming more than other regions though. 26037
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 24/07/2026From: www.nationalobserver.com/2026/07/24/n...nationalobserver.comWhat science can tell us about nature’s impact on kids’ brainsKelsey McWhinnie was teaching at a local BC high school and the concept of taking students out of the classroom and into nature spoke to her. “The learning impacts and achievement of those kids went u... 010
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 24/07/2026"Researchers at McGill and Adolfo Ibañez universities found that spending time in nature, even briefly, calms and settles the brain, reduces stress and mental clutter and restores attention. Through the use of EEG and various Magnetic Resonance Imaging (MRI) technologies, the effect is quantifiable" 1215
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 22/07/2026Why don’t you pitch something to the National Observer? Or via Efficiency Canada? 000
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 20/07/2026Holy crap! "Since 2009, the per-capita incidence of Lyme disease has increased approximately 32-fold for all of Canada — with even higher increases in Nova Scotia — according to calculations by Canada’s National Observer using data from the Public Health Agency of Canada (PHAC)." 1207
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 19/07/2026My Sunday deep dive into the current politics of Canada's wildfires and the US anger about smoke: open.substack.com/pub/thetrade...open.substack.comHoly Smokes! Tariffs, Sanctions, and Threatening Letters, Oh My!(How not to deal with Canada's wildfire smoke situation) 3105
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 16/07/2026Here's an easy to read deep dive into the relationship between wildfires and climate change in North America. I wrote it after speaking several experts in this area. In some ways it's complicated. In other ways not really... Link to Part 1: thetradeoff.substack.com/p/north-amer...thetradeoff.substack.comNorth America’s forests used to burn a lot more than present…So, is climate change really making wildfires worse today? 2246
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 15/07/2026How's that nation-building pipeline coming along Carney? 1276
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 09/07/2026Or like putting someone opposed to vaccines in charge of... FML! 110
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 09/07/2026Sadly, this is not a joke: "The U.S. Global Change Research Program is now headed by Matthew Wielicki" It's like putting a Flat Earther in charge of NASA. www.politico.com/news/2026/07...politico.comThe administration has a new climate change office. It’s headed by a climate critic.The office that produces the National Climate Assessment has been reconstituted, after the administration gutted it last year. 0175
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 09/07/2026You’d be surprised (or perhaps not) how many folks over at the other site seem to think that rising ASR is evidence that global warming is being caused by the sun 🤦🏻♂️ 010
Reposted by Ryan Katz-Rosene, PhDChris ☈ozoff @agitatedcu.bsky.social · 09/07/2026This is a great read on the basic science of climate warming with perspectives on recent observational trends. 1176
Reposted by Ryan Katz-Rosene, PhDRyan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 08/07/2026My latest at the Stack: thetradeoff.substack.com/p/wtf-is-hap...thetradeoff.substack.comWTF is happening with Earth’s Energy Imbalance?On the face of it, the situation with Earth’s Energy Imbalance seems straight forward: If the amount of energy entering the Earth system is higher than the amount leaving it, then Earth is going to wa... 2257
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 08/07/2026My latest at the Stack: thetradeoff.substack.com/p/wtf-is-hap...thetradeoff.substack.comWTF is happening with Earth’s Energy Imbalance?On the face of it, the situation with Earth’s Energy Imbalance seems straight forward: If the amount of energy entering the Earth system is higher than the amount leaving it, then Earth is going to wa... 2257
Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 07/07/2026Hard to describe but this particular formation comes across as fast moving 010