> Also, if you just bury the worn-out carbon-fiber blades in stable landfills I think it's probably better to just burn the carbon fiber. As you point out, it'

> Also, if you just bury the worn-out carbon-fiber blades in stable landfills I think it's probably better to just burn the carbon fiber. As you point out, it's not a significant amount of carbon, and it's a tidier solution with less risk of unintended consequences. If you want to capture and store carbon, burn it in a trash burning power plant that captures CO2. Then you have a more general-purpose solution for CO2 capture that you can feed any other carbon-based waste. (Of course, Reuse, Reuse and Recycle first, but eventually everything degrades to the point where it's best to burn it. This also helps pull out environmental toxins and heavy metals from materials we've made) There's an interesting project in Norway to test trash burning with pure oxygen. The gas in the chamber will in effect be a mix of O2 and CO2. The released CO2 is recycled and the O2/CO2 mixture is controlled to optimize the temperature. This makes the trash burning, the cleaning of the exhaust and the CO2-capture more efficient.