Table 6 Land area requirements for the MgO looping process.

From: Ambient weathering of magnesium oxide for CO2 removal from air

 Lower boundUpper bound1 GtCO2
CO2 captured [MtCO2 yr−1]601801000
Total plot land area [Mha]0.040.110.61
Grid electricity land area [ha]912861,500
Solar electricity land area [ha]8,30026,100138,000
Total land area (grid) [Mha]0.040.110.61
Total land area (solar) [Mha]0.050.140.75