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I know of @treeplanter. But stopped using it for myself, as I was scared it counts as upvote bot and would interfer with steemstem curation...

But I will check out how convenient freerice.com is on mobile devices. Definitely something interesting to cklick around on at a bus stop.

You mean the one that made comments that were shaped like trees? I liked the idea, but never knew whether it could be verified as real or not.

Yeah you guys have a better memory than me. Maybe we can combine alipay tree planting with steemit somehow...

I did my part by planting @dysprosium's peppers )