You may not have realized it, but a campaign has been underway since May 24th of this year, running through today's World Environment Day, urging people to join the "Mask Challenge." From their website, here are some things you can do:
To give you more of a hint about World Environment Day, check out their 2017 #CleanSeas focus and how one day can indeed make a difference! May we be able to do the same this year with #BeatAirPollution!
World Environment Day logo from http://www.aaee.org.au/event/world-environment-day-2019/
#BeatAirPollution from http://webtv.un.org/d/watch/world-environment-day-2019-mask-challenge/6042745643001/?term=?term&lan=english#CleanSeas video from https://www.youtube.com/watch?v=dTeXOF_9j_k&list=PLZ4sOGXTWw8GNZglk8F_fubpnmH2jvhTc&index=2, screenshots from https://www.worldenvironmentday.global/get-involved/world-environment-day-mask-challenge