Green marketing, which is also termed as environmental or sustainable marketing, is the effort made by any business organization, large or small to design and promote products that are eco-friendly. The main idea behind green marketing has been re-marketing of products that are already manufactured, which adhere to certain environmental guidelines. According to scientists, the world is moving towards an environmental turmoil. The only way to save our planet is to go green on a full swing as quickly as possible. For this cause, economists have also been doing their parts. The paper explores the challenges and opportunities businesses have with green marketing. The paper also describes the Green marketing mix, SWOT analysis of green marketing and reason why companies are adopting it.