This sounds very interesting… I can’t quite understand how it works, through advertising and sponsorship, I guess. Ecosia is a search engine that raises funds to plant trees in Brazil, so if you use it rather than other well-known sites, you indirectly plant a tree:
“Ecosia is a search engine that donates 80% of its income to a tree planting program in Brazil. By searching with Ecosia you can help the environment for free!”
