Companies are already turning waste CO2 into useful products and in turn contribute to getting rid of a greenhouse gas and slow down climate change. A companies like Novomer, Joule, and Skyonic have already developed ways to convert the CO2 into other useful commodities such as plastics, construction materials, and beginning parts for bottles and fibers. These companies are using waste CO2 that are being polluted from other industries, making sure to not take away from the CO2 vital to us. However, since CO2 is only considered to be o.o4% of our earth's atmosphere, they are having to extract it from large amounts of air in order to gain enough carbon dioxide to actually use. Certain companies have been turning atmospheric CO2 into graphene carbon nanofibers, which have been put towards positive items like aircrafts, wind turbines, and cars. Even sports equipment such as the graphene strings of Andy Murray's tennis racquet shown above have benefitted from the nanofibers. Depending on whether or not nanofibers can be produced cheaply and efficiently, they can be used in mass quantities going towards vital building materials. In this case, quantity has proven to be more valuable than quality when quality is already present. Climate change may not be a very important or convincing subject matter to everyone, but the ability to make money and also support the decrease of climate change is sure to open the mind of more people to idea of making the world better.
http://www.theguardian.com/environment/2015/sep/27/making-money-co2