Vaccines are widely available in the US and Canada for walk-in service at medical providers and pharmacies. Many areas are still operating dedicated immunization clinics. Vaccines are safe and effective, including against the omicron variant of concern.
Canada border crossings reopened to vaccinated and tested Americans on 9 August 2021. Testing is required within 72 hours of arrival and must be presented through the ArriveCAN online system. Only PCR tests are accepted.
US border crossings reopened to vaccinated Canadians on 8 November. Proof of vaccination is required. A “mixed dose” of US or WHO approved vaccines are acceptable. COVID testing is not required for entry to the US by land, but is still required for air travel.
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A lunar eclipse greeted early risers on 26 May 2021. Earth’s shadow totally covered the moon for a few minutes at about 1119 UT. This was about the time the moon was setting over North America, and was after sunrise in the far north of Alberta and Saskatchewan.
Montana Tech’s Robert Pál joined Huixuan Liao of Sun Yat-sen University and Manzoor Shah of the University of Kashmir on 9 February for a panel discussion on alpine botany, during the 2021 AAAS Annual Meeting.
Alpine environments are particularly fertile ground for climate change ecology because broad variation in microclimates can be found over a relatively short distance. As temperatures warm, new types of plants may rise above their former range. As moisture patterns change, areas may become better or worse for the growth of certain species. And lurking everywhere is the persistent threat of new and invasive species: non-native plants that spread and grow in manners that negatively impact the local environment, which may be hard to control once they take root.
The distinction between a fast-spreading non-invasive plant and an invasive species can be hard to pinpoint, but it often depends on whether it monopolizes an area at the expense of the broader ecosystem. Spotting them in the field can require a keen eye; certain invasive grasses can be notoriously hard to identify, even for experts.
When asked about ways invasive plants can be a solution, rather than a pest, Pál cited some concepts in harvesting invasive species as food, or to tap heavy metals out of toxic soils. Liao mentioned that some fast-growing plants can be used to combat coastal erosion.
When it came to encouraging new scientists, Shah said anyone can feel the excitement of a discovery on an ordinary walk, just by looking around their home turf for plants that look new or out of place, and taking samples to send in to the experts. Pál suggests that students looking to get into the field would benefit from learning the kinds of plants that help and harm their local environment, and further study in botany and ecology.
Here is a list of recent aviation safety incidents in Alberta, Saskatchewan, Manitoba, and northwest Ontario that were reported to the Transportation Safety Board through 15 August 2020:
17 Jul 2020 – C-FHBS gear up landing at Olds-Didsbury AB 17 Jul 2020 – C-GDUK load jettison near Slave Lake AB 18 Jul 2020 – C-GUSD emergency landing near Winnipeg-St.Andrews 21 Jul 2020 – C-FFVS load jettison north of Red Lake ON 21 Jul 2020 – C-FVIY landing gear issue at Lethbridge 21 Jul 2020 – C-GQNS wire strike at Medstead SK 23 Jul 2020 – C-GRGO equipment failure near Calgary 24 Jul 2020 – C-FBRG damaged on landing at Chapleau ON 27 Jul 2020 – C-GEDF damaged on takeoff near Calmar AB 28 Jul 2020 – N370JA, N53134 loss of separation at Fort McMurray 29 Jul 2020 – AMT200 gear up landing at Regina 30 Jul 2020 – Learjet bird strike on takeoff at Thunder Bay 31 Jul 2020 – C-GKGA cowling separation incident at Regina 01 Aug 2020 – C-FSCT damaged on landing near Sault Ste. Marie ON 04 Aug 2020 – C-FCJZ icing incident at Regina 04 Aug 2020 – C-FHZB damaged on landing at Springbank AB 04 Aug 2020 – C-FSPN control issues at Leaf Rapids ON 04 Aug 2020 – C-GKIB damaged on landing at CFR7 (AB) 08 Aug 2020 – C-GQIF fuel spill at Estevan 11 Aug 2020 – C-FAJR hit by drone at Winnipeg-St.Andrews
Here is a list of recent aviation safety incidents in the Dakotas, Iowa, upper and western Michigan, Minnesota, Montana, Nebraska, Wisconsin, and Wyoming, as reported to the Federal Aviation Administration through 14 August 2020:
17 Jul 2020 – N1962N damaged on landing at Osceola WI 20 Jul 2020 – N47T gear up landing at Burlington WI 20 Jul 2020 – N570WH wire strike near Dickeyville WI 21 Jul 2020 – N208MP damaged on landing at Thompson Falls MT 21 Jul 2020 – N2943C damaged on landing at Cambridge MN 25 Jul 2020 – N327WB crashed near Imperial NE 25 Jul 2020 – N502KJ fatal crash near Grant NE 27 Jul 2020 – N9278G emergency landing at Hartington NE 27 Jul 2020 – N53163 fatal crash near Corsica SD 27 Jul 2020 – N570WH collision on landing at Dakota WI 27 Jul 2020 – N771GB emergency landing at Hebron NE 29 Jul 2020 – N22709 emergency landing near Watertown SD 30 Jul 2020 – N4388T emergency landing near Powell WY 30 Jul 2020 – N337V fatal crash in Madison County MT 31 Jul 2020 – N16810 wire strike at Hubbard NE 01 Aug 2020 – N58B emergency landing near Helena 03 Aug 2020 – N45303 downdraft crash near Jackson Hole 03 Aug 2020 – N185GK runway excursion on landing at Kalispell 03 Aug 2020 – N67CD gear up landing at Sioux City 08 Aug 2020 – N5580W runway excursion on landing at Sparta WI 09 Aug 2020 – N89LA crashed near Logan IA 09 Aug 2020 – N6849B crashed in residential area near Burlington WI 10 Aug 2020 – N298WY crashed near Grover WY 12 Aug 2020 – N6299R emergency landing at Mosinee WI