Carbon dioxide emissions have a pretty bad rap these days. The Paris Climate summit brought together delegations from all over the world in an effort to cut carbon emissions and avoid catastrophic global warming. But right now the dirtiest fuel - coal - still supplies nearly 40% of the electricity in the U.S. and in even more in many developing countries. The good news is this gas isn’t always destructive. CO2 can actually be turned into a building block to make all sorts of products that we use every day. Our Inside Energy reporter Leigh Paterson has more on the furious race to capture carbon in the fight against climate change.