Ecosia is a search engine that uses its profits to plant trees around the world. Founded in 2009, it aims to combat climate change and promote reforestation. Users can search the internet just like with other search engines, but Ecosia donates a portion of its revenue from ads to environmental projects. The company is based in Germany and is known for its commitment to transparency. Ecosia publishes monthly financial reports, showing how many trees have been planted and where the funds are allocated. This approach allows users to contribute to environmental efforts simply by searching online.