The industry standard for search engines is estimated to be about 0.2 grams of CO2 emission per search. One grown acacia planted in Burkina Faso can take up to 50 kilograms of CO2 out of the atmosphere in a lifetime. Depending on clicks on ads and value of the search terms (some keywords like "credit" or "bank account" are more lucrative than others and may earn us up to a few dollars per click), Ecosia earns an average of 0.5 cents per search at the moment. The average cost of planting a new tree in our planting sites is 25 cents, so roughly 50 searches plant a new tree.
By planting trees with revenue from search ads, Ecosia automatically neutralizes its CO2 emissions. What's even cooler: By searching the web with Ecosia, users can offset their CO2 emissions with a daily habit for free!