So you've designed the perfect carbon capture process, cheap and easily installed in everything from coal power plants to car exhaust systems. Everything works perfectly, and not a single hydrocarbon escapes its net. Congratulations, you've solved one of humanity's most pressing problems -- but you've also created another. All that carbon may not be in the air, but it still exists. What do we do with the solid carbon byproducts in our quest to save the atmosphere?