A UK train ticket startup, Trainhugger, will plant a tree of you purchase a ticket through their website. This is exciting as approximately 3.5 billion to 7 billion trees are being cut down worldwide according to Rainforest Action Network's website (RAN). You can never have enough trees! This is at no cost to the passenger. All a passenger needs to do is purchase a ticket through the Trainhugger website. Tickets are offered for the same price as their competitors. This is a great incentive to take public transportation and leave the car at home.