Users need to activate the affiliate links themselves by clicking on a modal that appears when an affiliated website is visited (indeed by insertion in the page's html content). The majority of the fee goes into tree planting.
Hi HN! I created a website that finds the best flights and offsets the carbon emissions of those flights automatically. FlyGRN uses the income of selling flights for supporting solar panel projects in India that offset the flight’s carbon emissions largely. Of course for the environment it’s best not to fly, so we also show train alternatives on top if they are available. Any feedback is appreciated.