I actually have my own contribution to reforestation. lol

Every year on Arbor Day, I go up a mountain and plant about a dozen saplings.
For six years in elementary school, we used to gather at school on Arbor Day and head up the mountains to plant saplings.
Back then, Arbor Day was marked in red on the calendar,
but it wasn't a day off; it was effectively a workday.
Even the civil servants all came out to plant trees.