Some high school kids are being taught olla farming, a self-watering old agricultural practice, developed in southwestern Ontario by the descendants of escaped Black slaves and Indigenous people. Instructional videos are available YouTube. #water #irrigation #farming #history #climate #canada https://www.thestar.com/news/gather-round-toronto-high-schoolers-get-hands-on-lesson-in-the-lost-history-of-afro/article_c9ce2c63-3a03-4ca8-9be5-931c0af559ea.html