Everybody was kung-fu fighting, but nobody knew that they can help our planet without change anything, except their search engine. Don't panic, Ecosia is as fast as Google because it's still Google, with a few ads in the corner of your page. Each time you make a research, you will be helping the Ecosia fundation to plant a tree, and save the planet. All you have to do is downloading the Ecosia's plugin on Google Chrome and add http://www.ecosia.org/ as your homepage, in your settings. It's easy and you will not be able to see the difference, so it worth the try.