Peak Canadiana: eating a scoop of Tragically Chip for lunch before swimming where someone caught a 54" muskie last week.

www.nytimes.com/2026/07/18/w... Lots of great insights from @mikeflannigan.bsky.social in this article!

Most Forest Fires in Canada Are Simply Impossible to Put Out

Half of Canada’s wildfires are in remote areas with no road access. Impossible to fight, they are often left to burn.

nytimes.com

In Toronto this morning (Thursday) the sky looks slightly less hazy, but the surface pollution levels are actually twice as bad as yesterday. And the worst I can remember in 20 years of living here. If you have to breathe outside, wear a mask! 😷

This is a very thorough and very informative article about air purifiers and air quality. www.cnet.com/home/kitchen...

The Unfiltered Truth: What Air Purifiers Actually Catch

I connected with experts to find out where our air quality is headed, and if air purifiers are the breath of fresh air we need.

cnet.com

Just found a nice new product that combines government monitoring data with Purpleair sensors #wildfire # airquality fire.airnow.gov#9/43.5992/-7...

firesmoke.ca/forecasts/cu... is a really cool tool but the forecast seems to have significantly underestimated how strongly the Toronto region would be impacted by smoke today

Hi #Toronto peeps! The provincial air quality monitoring site seems to be struggling to keep up with people's interest and concern about poor #airquality from #wildfire You can also see government monitoring data at gispub.epa.gov/airnow/

I watched the series finale of #TheBear last night and spent a little more focusing on plating and presentation tonight in its honour (and to celebrate 🍓 season)

Very proud (and surprised) that my bank branch saved my favourite dive-bar-half-price-nacho-cultural-institution from being demolished by property developers www.thestar.com/news/gta/sne...

Sneaky Dee’s developer withdraws demolition plan as neighbouring RBC objects

The developer withdrew its application from the City of Toronto on Friday.

thestar.com

University of Toronto: Analytical Chemistry (teaching stream) https://chempostingscanada.blogspot.com/2026/06/university-of-toronto-analytical.html

Is it Microsoft or is it menopause?

CIRES / NOAA Chemical Sciences Laboratory, Research Scientist in Greenhouse Gas and Ammonia Air Pollutant Measurements jobs.colorado.edu/jobs/JobDeta...

Priority application deadline is April 20! 🧪 #ChemSky

Dylan B. Millet@dbm.bsky.social · 5mo ago

Postdoc opening: Geostationary measurements of atmospheric chemistry Join us! Our group seeks a postdoc to work on space-based measurements of atmospheric chemistry with the new generation of geo-IR satellite instruments. See z.umn.edu/b5iz for details & contact me (dbm@umn.edu) with questions!

Delighted to share that our review on what the COVID-19 lockdowns revealed about atmospheric chemistry was published today. What fun to write papers with wonderful colleague/friends! @jessekroll.bsky.social @envchemjen.bsky.social @chemdelphine.bsky.social pubs.acs.org/doi/10.1021/...

Atmospheric Chemistry Insights from the Global COVID-19 Pandemic: A Review

The COVID-19 pandemic and resulting reductions in worldwide emissions, associated primarily with the transport sector, provided an unprecedented opportunity to explore the response of atmospheric chemistry and composition to large anthropogenic emissions perturbations. While air quality generally improved in early 2020, this was tempered by increased formation of secondary pollutants (e.g., O3 and secondary particulate matter, PM) in many regions studied. Declines in NOx emissions were largely responsible for the changes in O3, driving decreases in O3 concentrations in remote regions and increases in urban regions due to both decreases in O3 titration by NOx and also nonlinear changes in O3 production. Lower NOx levels also increased the levels of other oxidants (e.g., OH and O3), leading to a general increase in atmospheric oxidation in polluted urban regions. This enhanced oxidation promoted additional PM formation in some regions but was generally outweighed by decreases in primary PM and other secondary precursors (SO2 and VOCs). The COVID-19 pandemic gave rise to large local perturbations in air quality but only modest reductions in the global abundance of short-lived climate forcers (including O3 and PM).

pubs.acs.org

Postdoc opening: Geostationary measurements of atmospheric chemistry Join us! Our group seeks a postdoc to work on space-based measurements of atmospheric chemistry with the new generation of geo-IR satellite instruments. See z.umn.edu/b5iz for details & contact me (dbm@umn.edu) with questions!

PostdocAd-GXS

Postdoctoral Associate: Geostationary measurements of atmospheric chemistry Join us! Our atmospheric chemistry group at the University of Minnesota (UMN) is seeking applications for a Postdoctoral A...

z.umn.edu

Hej CATCH community!👋 Don't miss our next seminar by Jennifer Murphy @envchemjen.bsky.social (Uni Toronto) on March 18th, 15:00 UTC on "Sources and fate of atmospheric ammonia in the Arctic". Zoom link & calendar entry as usual on 👉 www.catchscience.org #CATCHscience @igac-ecr.bsky.social

Between the hockey and the snow shovelling, there are probably going to be a few extra cardiac events in North America this weekend.

Karmically, Canada should be allowed an extra man on the ice for the duration of our penalty

Me: Winter is almost over, maybe I can put my SAD lamp away. Toronto weather for the next 3 days: Good luck

www.cbc.ca/news/world/l... Does this mean I can start ordering stainless steel compression fittings again?

U.S. Supreme Court finds Trump overstepped authority in imposing tariffs under emergency law | CBC

cbc.ca

🚨 We’re hiring a Canada Impact+ Research Chair in Remote Sensing in the University of Lethbridge’s Department of Geography & Environment. 🚨 🔗 Full details and application link: uleth.peopleadmin.ca/postings/8952 📆 Application review starts March 9!

This is the first winter in 3 years that I didn't plan a snowpack chemistry field experiment, and then only get like two days of data, so it's totally my fault that Toronto is getting so much snow this year 😳 #snowTO #ONStorm

Toronto is at the special triple point, aka that rare "wintry mix" trifecta where the three phases of H2O are rain, ice, and snow. (My skin agrees there is no water vapour present in the air)

Everyone at #AGU25, make your fonts bigger.

Time to see if 2025 'Ove' Glove measures up to the ~2010 model

If you work on sources and impacts of VOCs (biogenic or anthropogenic) from measurement to modeling perspectives please submit an abstract to our atmospheric organics session at #EGU26! Our invited speakers are @dbm.bsky.social and @jacquirickard.bsky.social See you in Vienna! tinyurl.com/55vda8u7

The Canadian government is ignoring research and the voices of green business and is cutting our brand new greenwashing law. Read more in our Globe and Mail op ed today.

Opinion: Ottawa is scrapping Canada’s greenwashing rules. This is a mistake

Canada should not back away from holding firms to account for what they say about the environment

theglobeandmail.com

www.theglobeandmail.com/opinion/arti...

Opinion: How much are MPs entitled to know about research grants? Not as much as they think

A parliamentary committee is asking for academics’ private information on a strange anti-DEI crusade

theglobeandmail.com

Sad the #bluejays lost but honestly could not have handled another extra inning game, especially after the clocks changed