Tree billboard? ',:>

​   Guys! I just found out something so cool! An engineer invented a type of billboard that uses resin filled with minerals to convert common pollutants into oxygen! His name is Daan Roosegaarde, and he partnered with Monterey University to set up all those billboards around their area.
   It uses a type of resin with minerals that collect air pollution and convert it into oxygen. According to his study, in a day it can transform smog as much as 120 trees would in the same amount of time!
   The technology has even been used in curtains and buildings. One of the towers can produce 30,000 meters of filtered air in just one hour! I'm really looking forward to what we can do to create a cleaner planet. Just combine new innovations like this with growing more plants and reducing our carbon footprint all over the planet, and we might just be able to save the earth.
   Zoinks, imagine if all the countries directed their funds away from artilleries and focused more on things to help humanity and the world we live in.  We'd be able to make so much progress!