Reviewer 2 does geoengineering
Andrew and Walker discussed a wide variety of things - here are some useful links:
Aluminum increases net carbon fixation by marine diatoms and decreases their decomposition: Evidence for the iron–aluminum hypothesis - https://aslopubs.onlinelibrary.wiley.com/doi/10.1002/lno.11784
Solar geoengineering can alleviate climate change pressures on crop yields - https://www.nature.com/articles/s43016-021-00278-w
Mission Zero Technologies: https://missionzero.tech
Heirloom: https://www.heirloomcarbon.com
The Future Forest Company: https://thefutureforestcompany.com
CarbonBuilt: https://www.carbonbuilt.com
Running Tide: https://www.runningtide.com