< p >率. .不。< / p > < h1 >蛮力< / h1 > < p >我们可以把这作为化学工业的问题。碳sequesteration只是蛮力方法:< / p > < ol > <李>从空气中提取二氧化碳(使用酸/碱化学、氢氧化钠会擦洗它尽可能快送风)< /李> <李>元素碳和氧减少二氧化碳。确切的细节并不重要——这是一个工业化学家——只是概念,需要大量的能量。基本上相当于我们目前从化石燃料的能量,然后,提取并减少以同样的速度。李李< / > < >存储碳的地方安全,不会着火。只要它没有,它稳定在地质时间尺度。< /李> < / ol > < p >这一过程的速度取决于你准备多少能量。24/7的数千座核反应堆运行这个问题会这么做。< / p > < h1 >埋葬< / h1 > < p >嗯,蛮力听起来有点贵…我们可以尝试由杰克·R·伍兹提到的方法。 In this case, we capture CO2 (this still takes energy, although not much in theory), and pump it into thick basalt formations such as the ones in Iceland. Many flood-basalt igneous provinces have the combination of low-silica rocks and high porosity that are ideal for this kind of sequestration. The rate is limited by how fast you can capture CO2 out of the air. You could imagine using a Solar Updraft Tower - this would give an air flow that you could extract CO2 from, and provide power for the process. If the reaction goes as planned, it's safe on geological timescales. The problem is, as ever, getting enough resources to build these things on the scale required.