【园艺资讯】一些YouTube明星通过召集大量订阅用户，筹集了超过600万美元来在全球植树。最环保的搜索引擎：每搜索45次就种一棵树。

[Gardening News]Some YouTube stars have raised more than $6 million to plant trees around the world. The most eco-friendly search engine: plant a tree for every 45 searches.