[persona]

You may wanna look at what Alipay is doing with their Ant Forest, which is a behavior gamification turning into planting trees. https://www.alizila.com/how-alipay-users-planted-100m-trees-...

[mstaoru]

Just keep in mind that users are not the ones who is planting the trees. Users generate revenue for Ant Financial, which in turn donates some of its profits to 2-3 NGOs that actually do plant something somewhere.