As Greta Thunberg and thousands of youth activists worldwide participate today in the largest Youth Climate Strike to date, educators like me see the primal-scream-worthy subtext: Students have realized that to secure their future, their best option is to leave school grounds. Never was there a clearer sign that our schools must do better on climate change. A little over a year ago, I left the 9th grade biology classroom, my home and passion for six years, because I did not have the time and support to help young people address the one issue that will affect them the most....