Should we invest more in removing co2 from the atomsphere

Eventually we may have to. But for now I think it's more efficient to reduce existing emmisions, as that technology is well established, and more efficient for the same cost.

The technology exists, and we gain fuel as a by-product. So should we invest more in co2 capture and removal from the atomsphere?

Absolutely. If we already have this technology, then why aren't we deploying it everywhere already? Sometimes my mind boggles at the people making our decisions. Climate change is the single biggest issue facing us as a species, and I feel like we just sit back here and watch it happen. If the wealthier billion people of the world all had to give £10 to invest in renewables and stopping climate change, we'd have £10,000,000,000 to play with - a lot of money. Something like this initiative needs to be considered.