Daniel A. Walker @danwalker9999.bsky.social · 06/10/2026Measles is brutally efficient at airborne transmission. It can linger in the air for >1h. It will find the unprotected, particularly infants. 000
Daniel A. Walker @danwalker9999.bsky.social · 05/10/2026Measles is brutally efficient at airborne transmission. It can linger in the air for >1 hr. It will find the unvaccinated (including infants who are too young for vaccination) and the under-vaccinated. Known for 40 years. www.researchgate.net/publication/... 010
Daniel A. Walker @danwalker9999.bsky.social · 05/10/2026The whole country is beautiful, sea to sea to sea 010
Daniel A. Walker @danwalker9999.bsky.social · 04/10/2026Those electric trucks in China are mainly powered by coal-generated electricity. ourworldindata.org/profile/ener... 300
Daniel A. Walker @danwalker9999.bsky.social · 04/10/2026It is bizarrely ignorant that Alberta separatists think they could supply water to the US. Alberta is a water-poor province, with frequent droughts. Its major rivers flow to SK and NWT. SK in particular would be outraged at the prospect of diversions to the US. ftp.geogratis.gc.ca/pub/nrcan_rn... 000
Daniel A. Walker @danwalker9999.bsky.social · 02/10/2026Montreal squirrel nest built into a window 010
Daniel A. Walker @danwalker9999.bsky.social · 29/09/2026The reality of Canada's residential schools does not require bones as proof The toll was exposed in contemporaneous reports (1905, 1906) by Peter Bryce, Chief Medical Officer of federal Depts of the Interior and Indian Affairs His anger bleeds through the yellowed pages archive.org/details/repo... 1126
Daniel A. Walker @danwalker9999.bsky.social · 23/09/2026As a parent, I was really big on taking my kid to places like Science World. As a grandparent, I'm more into showing my grandkids stuff like the correct way to hold a snail without hurting it. 121
Daniel A. Walker @danwalker9999.bsky.social · 22/09/2026Protect yourself Know your local PM2.5 via crowd-sourced PurpleAir ⤵️ map.purpleair.com/air-quality-... Know your indoor PM2.5: get an indoor monitor Clean your air with a HEPA filter or DIY Corsi-Rosenthal box⤵️ Be aware that agricultural burning also produces dangerous PM2.5, particularly in E 🇺🇸 000
Daniel A. Walker @danwalker9999.bsky.social · 21/09/2026ski googles, studded tires, weight on the back wheel 020
Daniel A. Walker @danwalker9999.bsky.social · 18/09/2026Air quality in the eastern 🇺🇸 , as indicated by PM2.5 concentration, is consistently poor. Depending on how the air masses behave, this pollution typically oozes over the border into 🇨🇦. map.purpleair.com/air-quality-... 000
Daniel A. Walker @danwalker9999.bsky.social · 18/09/2026The Grind is just around the corner, although it's a bit rougher, TBH 020
Daniel A. Walker @danwalker9999.bsky.social · 16/09/2026Sometimes the headlines just fall together www.nytimes.com/2026/09/15/u... www.nytimes.com/2026/09/16/w... 201
Daniel A. Walker @danwalker9999.bsky.social · 15/09/2026My grandpa. An CCF organizer in Calgary, beginning in 1945. He was busy with something else before that. 010
Daniel A. Walker @danwalker9999.bsky.social · 15/09/2026Reminder that what we had was built brick-by-brick, over decades. 010
Daniel A. Walker @danwalker9999.bsky.social · 14/09/2026N95 won't protect against gaseous pollutants. For that, you would need a half-mask with activated-carbon cartridges. Which would look a bit weird. Better would be to stay indoors with an activated-carbon air filter. Many commercial HEPA filters include an activated carbon layer. 100
Daniel A. Walker @danwalker9999.bsky.social · 14/09/2026Stanley Park is within walking distance of downtown Vancouver, with a maze of trails through coastal rainforest. 100
Daniel A. Walker @danwalker9999.bsky.social · 08/09/2026St. Lawrence River at Montreal. Downstream from Lake Ontario. 011
Daniel A. Walker @danwalker9999.bsky.social · 06/09/2026NIAID involvement in biodefense, under Fauci, went back 25y, with a corresponding history of funding battles. It led directly to NIAID involvement in pathogen-tweaking research, with implications for dual use, given the thin line between biodefense and bioweapons. www.jci.org/articles/vie... 020
Daniel A. Walker @danwalker9999.bsky.social · 28/08/2026Sooty shearwaters have an amazing cross-Pacific migration pattern that defies the simplistic concept of flyways. And, it has to be said, provides a possible pathway for the spread of H5N1 avian influenza on a global scale. doi.org/10.1073/pnas... 161
