I keep thinking about why we’re going through this effort rather that using trees, which can also be harvested for lumber and the sequester that carbon in construction.<p>My super rough math, from quick Google searches, this unit 1,000 tons per year. A mature tree is estimated to capture 48 pounds per year. That would be about 42,000 trees. At roughly, 100-200 trees per acre. Let’s just say 150, so that’s 280 acres of forest/trees to roughly match to performance of the system. Granted, it’s on much less land, but still.<p>That doesn’t seem like a lot of land when you consider that large protected parks like Yosemite are 759,620 acres.