Ecosia for Chrome is a search engine extension that allows you to plant trees while browsing, thanks to its advertising revenue being devoted to eco initiatives. Each search made by the user via Ecosia will generate income that will be used to plant trees!
Advertisements that are related to user searches are responsible for generating those revenues. Ecosia comes in the form of a simple extension that can be added in a few clicks. You can also see in real-time the number of trees you have helped plant for all your research.