Global warming is an issue that concerns one and all. The use of plastic and other non bio degradable material is also one of the major factors that are increasing the whole global warming phenomenon. This extensive use has lead to many health related issues among humans. To combat the adverse effects of global warming on the planet as well as on the health of people all over the world, eco friendly things have been introduced. Whether it be paper bags, eco-friendly cars or organic food everything is now becoming eco-friendly to save our planet and its environment. San Francisco welcomes conventions with eco friendly banners. Not just conventions but now even street banners that are used for promoting different products, services or information have become eco- friendly in the city of the Golden Gate Bridge, San Francisco.