I don't think "sold on amazon" is a good benchmark when it comes to bulk mass. Construction materials might be a better choice. Concrete production is measured in Gt/a.
And of course we also need to reduce carbon emissions, capture is not a singular solution, but it may help during the transition to renewables where we still need gas plants.
Well concrete already uses lime, which is calcium carbonate (the original carbon sink). Maybe skip the carbon fiber use case all together and figure out a way to effectively produce artificial calcium carbonate.
And of course we also need to reduce carbon emissions, capture is not a singular solution, but it may help during the transition to renewables where we still need gas plants.